<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DataTracks Rainbow version 3.5 on 19-March-2023 [02:49:54] {AM}-->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <roleRef xlink:type="simple" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ConsolidatedStatementOfChangesInEquity" roleURI="http://www.convatecgroup.com/role/ConsolidatedStatementOfChangesInEquity" />
  <roleRef xlink:type="simple" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ConsolidatedIncomeStatement" roleURI="http://www.convatecgroup.com/role/ConsolidatedIncomeStatement" />
  <roleRef xlink:type="simple" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ConsolidatedStatementOfComprehensiveIncome" roleURI="http://www.convatecgroup.com/role/ConsolidatedStatementOfComprehensiveIncome" />
  <roleRef xlink:type="simple" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#TagsThatMustBeAppliedIfCorrespondingInformationIsPresentInAReport" roleURI="http://www.convatecgroup.com/role/TagsThatMustBeAppliedIfCorrespondingInformationIsPresentInAReport" />
  <roleRef xlink:type="simple" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ConsolidatedStatementOfCashFlows" roleURI="http://www.convatecgroup.com/role/ConsolidatedStatementOfCashFlows" />
  <roleRef xlink:type="simple" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ConsolidatedStatementOfFinancialPosition" roleURI="http://www.convatecgroup.com/role/ConsolidatedStatementOfFinancialPosition" />
  <roleRef xlink:type="simple" xlink:href="http://www.esma.europa.eu/taxonomy/2021-03-24/esef_cor.xsd#ifrs-dim_role-990000" roleURI="http://www.esma.europa.eu/xbrl/role/cor/ifrs-dim_role-990000" />
  <roleRef xlink:type="simple" xlink:href="http://www.esma.europa.eu/taxonomy/2021-03-24/esef_cor.xsd#esef_role-999999" roleURI="http://www.esma.europa.eu/xbrl/role/cor/esef_role-999999" />
  <roleRef xlink:type="simple" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#Anchoring" roleURI="http://www.convatecgroup.com/role/Anchoring" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" />
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/notAll" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#notAll" />
  <arcroleRef arcroleURI="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/arcrole/esma-arcrole-2018-11-21.xsd#wider-narrower" />
  <definitionLink xlink:type="extended" xlink:role="http://www.convatecgroup.com/role/ConsolidatedStatementOfChangesInEquity">
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_StatementOfChangesInEquityLineItems" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_StatementOfChangesInEquityTable" xlink:label="loc_ifrs-full_StatementOfChangesInEquityTable_196" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_StatementOfChangesInEquityTable_196" xbrldt:contextElement="scenario" xbrldt:closed="true" use="optional" order="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis_197" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable_196" xlink:to="loc_ifrs-full_ComponentsOfEquityAxis_197" use="optional" order="2" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_EquityMember" xlink:label="loc_ifrs-full_EquityMember_198" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_197" xlink:to="loc_ifrs-full_EquityMember_198" use="optional" order="3" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_MergerReserveMember" xlink:label="loc_ifrs-full_MergerReserveMember_205" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember_198" xlink:to="loc_ifrs-full_MergerReserveMember_205" use="optional" order="4" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_SharePremiumMember" xlink:label="loc_ifrs-full_SharePremiumMember_202" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember_198" xlink:to="loc_ifrs-full_SharePremiumMember_202" use="optional" order="5" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_TreasurySharesMember" xlink:label="loc_ifrs-full_TreasurySharesMember_203" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember_198" xlink:to="loc_ifrs-full_TreasurySharesMember_203" use="optional" order="6" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_RetainedEarningsMember" xlink:label="loc_ifrs-full_RetainedEarningsMember_204" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember_198" xlink:to="loc_ifrs-full_RetainedEarningsMember_204" use="optional" order="7" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IssuedCapitalMember" xlink:label="loc_ifrs-full_IssuedCapitalMember_201" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember_198" xlink:to="loc_ifrs-full_IssuedCapitalMember_201" use="optional" order="8" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherReservesMember" xlink:label="loc_ifrs-full_OtherReservesMember_207" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember_198" xlink:to="loc_ifrs-full_OtherReservesMember_207" use="optional" order="9" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_206" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember_198" xlink:to="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_206" use="optional" order="10" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ComprehensiveIncome" xlink:label="loc_ifrs-full_ComprehensiveIncome_215" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_ComprehensiveIncome_215" use="optional" order="11" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DividendsPaid" xlink:label="loc_ifrs-full_DividendsPaid_216" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_DividendsPaid_216" use="optional" order="12" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity" xlink:label="loc_ctec_IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity_217" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ctec_IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity_217" use="optional" order="13" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_218" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_218" use="optional" order="14" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions_219" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions_219" use="optional" order="15" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions" xlink:label="loc_ifrs-full_DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions_220" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions_220" use="optional" order="16" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_Equity" xlink:label="loc_ifrs-full_Equity_208" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_Equity_208" use="optional" order="17" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ProfitLoss" xlink:label="loc_ifrs-full_ProfitLoss_209" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_ProfitLoss_209" use="optional" order="18" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncomeAbstract" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeAbstract_200" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeAbstract_200" use="optional" order="19" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_213" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_200" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_213" use="optional" order="20" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_214" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_200" xlink:to="loc_ifrs-full_OtherComprehensiveIncome_214" use="optional" order="21" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_210" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_200" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_210" use="optional" order="22" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_211" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_200" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_211" use="optional" order="23" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_ChangeInPensionAssetRestriction" xlink:label="loc_ctec_ChangeInPensionAssetRestriction_212" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_200" xlink:to="loc_ctec_ChangeInPensionAssetRestriction_212" use="optional" order="24" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_RealisationOfCumulativeTranslationAdjustment" xlink:label="loc_ctec_RealisationOfCumulativeTranslationAdjustment_856019" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract_200" xlink:to="loc_ctec_RealisationOfCumulativeTranslationAdjustment_856019" use="optional" order="25" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_856032" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_856032" use="optional" order="26" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings_856035" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_199" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings_856035" use="optional" order="27" />
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.esma.europa.eu/xbrl/role/cor/ifrs-dim_role-990000" />
  <definitionLink xlink:type="extended" xlink:role="http://www.esma.europa.eu/xbrl/role/cor/esef_role-999999">
    <loc xlink:type="locator" xlink:href="http://www.esma.europa.eu/taxonomy/2021-03-24/esef_cor.xsd#esef_cor_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:label="loc_LineItemsNotDimensionallyQualifiedPlaceholder" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_NonOperatingExpenseIncomeNet" xlink:label="loc_ctec_NonOperatingExpenseIncomeNet_31" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_NonOperatingExpenseIncomeNet_31" use="optional" order="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="loc_ifrs-full_ProfitLossBeforeTax_32" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossBeforeTax_32" use="optional" order="2" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_33" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_33" use="optional" order="3" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ProfitLoss" xlink:label="loc_ifrs-full_ProfitLoss_34" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLoss_34" use="optional" order="4" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_BasicEarningsLossPerShare" xlink:label="loc_ifrs-full_BasicEarningsLossPerShare_35" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_BasicEarningsLossPerShare_35" use="optional" order="5" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DilutedEarningsLossPerShare" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShare_36" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DilutedEarningsLossPerShare_36" use="optional" order="6" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_FinanceCosts" xlink:label="loc_ifrs-full_FinanceCosts_30" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FinanceCosts_30" use="optional" order="7" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_FinanceIncome" xlink:label="loc_ifrs-full_FinanceIncome_29" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_FinanceIncome_29" use="optional" order="8" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities_28" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities_28" use="optional" order="9" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ResearchAndDevelopmentExpense" xlink:label="loc_ifrs-full_ResearchAndDevelopmentExpense_27" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ResearchAndDevelopmentExpense_27" use="optional" order="10" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_GeneralAndAdministrativeExpense" xlink:label="loc_ifrs-full_GeneralAndAdministrativeExpense_26" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_GeneralAndAdministrativeExpense_26" use="optional" order="11" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_OperatingExpensesExcludingCostOfSales" xlink:label="loc_ctec_OperatingExpensesExcludingCostOfSales_25" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_OperatingExpensesExcludingCostOfSales_25" use="optional" order="12" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_GrossProfit" xlink:label="loc_ifrs-full_GrossProfit_24" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_GrossProfit_24" use="optional" order="13" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CostOfSales" xlink:label="loc_ifrs-full_CostOfSales_23" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CostOfSales_23" use="optional" order="14" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_Revenue" xlink:label="loc_ifrs-full_Revenue_22" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Revenue_22" use="optional" order="15" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_MiscellaneousOtherOperatingExpense" xlink:label="loc_ifrs-full_MiscellaneousOtherOperatingExpense_855983" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_MiscellaneousOtherOperatingExpense_855983" use="optional" order="16" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForDepreciationOfPropertyPlantAndEquipment" xlink:label="loc_ctec_AdjustmentsForDepreciationOfPropertyPlantAndEquipment_272" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_AdjustmentsForDepreciationOfPropertyPlantAndEquipment_272" use="optional" order="17" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForDepreciationOfRightOfUseAssets" xlink:label="loc_ctec_AdjustmentsForDepreciationOfRightOfUseAssets_273" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_AdjustmentsForDepreciationOfRightOfUseAssets_273" use="optional" order="18" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForAmortisationExpense" xlink:label="loc_ifrs-full_AdjustmentsForAmortisationExpense_274" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForAmortisationExpense_274" use="optional" order="19" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:label="loc_ifrs-full_AdjustmentsForIncomeTaxExpense_275" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncomeTaxExpense_275" use="optional" order="20" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForNonOperatingExpenseNet" xlink:label="loc_ctec_AdjustmentsForNonOperatingExpenseNet_276" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_AdjustmentsForNonOperatingExpenseNet_276" use="optional" order="21" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForFinanceIncomeCost" xlink:label="loc_ifrs-full_AdjustmentsForFinanceIncomeCost_277" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForFinanceIncomeCost_277" use="optional" order="22" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForSharebasedPayments" xlink:label="loc_ifrs-full_AdjustmentsForSharebasedPayments_278" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForSharebasedPayments_278" use="optional" order="23" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForImpairmentAndWriteOffOfIntangiblesAssets" xlink:label="loc_ctec_AdjustmentsForImpairmentAndWriteOffOfIntangiblesAssets_279" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_AdjustmentsForImpairmentAndWriteOffOfIntangiblesAssets_279" use="optional" order="24" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForImpairmentAndWriteOffOfPropertyPlantAndEquipment" xlink:label="loc_ctec_AdjustmentsForImpairmentAndWriteOffOfPropertyPlantAndEquipment_280" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_AdjustmentsForImpairmentAndWriteOffOfPropertyPlantAndEquipment_280" use="optional" order="25" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_281" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_281" use="optional" order="26" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_282" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_282" use="optional" order="27" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForOtherNonCurrentReceivables" xlink:label="loc_ctec_AdjustmentsForOtherNonCurrentReceivables_283" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_AdjustmentsForOtherNonCurrentReceivables_283" use="optional" order="28" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForRestrictedCash" xlink:label="loc_ctec_AdjustmentsForRestrictedCash_284" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_AdjustmentsForRestrictedCash_284" use="optional" order="29" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_285" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_285" use="optional" order="30" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForIncreaseDecreaseInOtherNonCurrentPayables" xlink:label="loc_ctec_AdjustmentsForIncreaseDecreaseInOtherNonCurrentPayables_286" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_AdjustmentsForIncreaseDecreaseInOtherNonCurrentPayables_286" use="optional" order="31" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CashFlowsFromUsedInOperations" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperations_287" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperations_287" use="optional" order="32" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_288" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_288" use="optional" order="33" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities_289" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities_289" use="optional" order="34" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_290" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_290" use="optional" order="35" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_291" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities_291" use="optional" order="36" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" xlink:label="loc_ctec_AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets_292" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets_292" use="optional" order="37" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_302" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities_302" use="optional" order="38" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_303" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_303" use="optional" order="39" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities_301" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsPaidClassifiedAsFinancingActivities_301" use="optional" order="40" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_294" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_294" use="optional" order="41" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_ProceedsFromDivestiture" xlink:label="loc_ctec_ProceedsFromDivestiture_295" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_ProceedsFromDivestiture_295" use="optional" order="42" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_PaymentOfContingentConsiderationArisingFromAcquisitions" xlink:label="loc_ctec_PaymentOfContingentConsiderationArisingFromAcquisitions_856003" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_PaymentOfContingentConsiderationArisingFromAcquisitions_856003" use="optional" order="43" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_296" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities_296" use="optional" order="44" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_297" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_297" use="optional" order="45" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_298" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_298" use="optional" order="46" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_299" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_299" use="optional" order="47" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:label="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_305" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_305" use="optional" order="48" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities_855991" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities_855991" use="optional" order="49" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_213" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_213" use="optional" order="50" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_214" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncome_214" use="optional" order="51" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ComprehensiveIncome" xlink:label="loc_ifrs-full_ComprehensiveIncome_215" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ComprehensiveIncome_215" use="optional" order="52" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DividendsPaid" xlink:label="loc_ifrs-full_DividendsPaid_216" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DividendsPaid_216" use="optional" order="53" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity" xlink:label="loc_ctec_IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity_217" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity_217" use="optional" order="54" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_218" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_218" use="optional" order="55" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions_219" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions_219" use="optional" order="56" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions" xlink:label="loc_ifrs-full_DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions_220" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions_220" use="optional" order="57" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_Equity" xlink:label="loc_ifrs-full_Equity_222" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Equity_222" use="optional" order="58" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_210" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_210" use="optional" order="59" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_211" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_211" use="optional" order="60" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_ChangeInPensionAssetRestriction" xlink:label="loc_ctec_ChangeInPensionAssetRestriction_212" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_ChangeInPensionAssetRestriction_212" use="optional" order="61" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_RealisationOfCumulativeTranslationAdjustment" xlink:label="loc_ctec_RealisationOfCumulativeTranslationAdjustment_856019" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_RealisationOfCumulativeTranslationAdjustment_856019" use="optional" order="62" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_856032" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_856032" use="optional" order="63" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings_856035" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings_856035" use="optional" order="64" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_OtherComprehensiveIncomeBeforeTaxChangeInPensionAssetRestriction" xlink:label="loc_ctec_OtherComprehensiveIncomeBeforeTaxChangeInPensionAssetRestriction_60" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_OtherComprehensiveIncomeBeforeTaxChangeInPensionAssetRestriction_60" use="optional" order="65" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_RealisationOfCumulativeTranslationAdjustments" xlink:label="loc_ctec_RealisationOfCumulativeTranslationAdjustments_855984" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_RealisationOfCumulativeTranslationAdjustments_855984" use="optional" order="66" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_EffectivePortionOfChangesInFairValueOfCashFlowHedges" xlink:label="loc_ctec_EffectivePortionOfChangesInFairValueOfCashFlowHedges_63" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_EffectivePortionOfChangesInFairValueOfCashFlowHedges_63" use="optional" order="67" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_64" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_64" use="optional" order="68" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_CostsOfHedging" xlink:label="loc_ctec_CostsOfHedging_65" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_CostsOfHedging_65" use="optional" order="69" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_66" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_66" use="optional" order="70" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment_127" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment_127" use="optional" order="71" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_RightofuseAssets" xlink:label="loc_ifrs-full_RightofuseAssets_128" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RightofuseAssets_128" use="optional" order="72" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CurrentAssets" xlink:label="loc_ifrs-full_CurrentAssets_138" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentAssets_138" use="optional" order="73" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_Assets" xlink:label="loc_ifrs-full_Assets_139" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Assets_139" use="optional" order="74" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IntangibleAssetsAndGoodwill" xlink:label="loc_ifrs-full_IntangibleAssetsAndGoodwill_129" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IntangibleAssetsAndGoodwill_129" use="optional" order="75" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DeferredTaxAssets" xlink:label="loc_ifrs-full_DeferredTaxAssets_130" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DeferredTaxAssets_130" use="optional" order="76" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:label="loc_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents_131" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents_131" use="optional" order="77" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherNoncurrentReceivables" xlink:label="loc_ifrs-full_OtherNoncurrentReceivables_132" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherNoncurrentReceivables_132" use="optional" order="78" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NoncurrentAssets" xlink:label="loc_ifrs-full_NoncurrentAssets_133" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentAssets_133" use="optional" order="79" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_Inventories" xlink:label="loc_ifrs-full_Inventories_134" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Inventories_134" use="optional" order="80" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_TradeAndOtherReceivables" xlink:label="loc_ifrs-full_TradeAndOtherReceivables_135" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_TradeAndOtherReceivables_135" use="optional" order="81" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NoncurrentDerivativeFinancialAssets" xlink:label="loc_ifrs-full_NoncurrentDerivativeFinancialAssets_136" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentDerivativeFinancialAssets_136" use="optional" order="82" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="loc_ifrs-full_CashAndCashEquivalents_137" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CashAndCashEquivalents_137" use="optional" order="83" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NoncurrentLeaseLiabilities" xlink:label="loc_ifrs-full_NoncurrentLeaseLiabilities_148" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentLeaseLiabilities_148" use="optional" order="84" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DeferredTaxLiabilities" xlink:label="loc_ifrs-full_DeferredTaxLiabilities_149" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DeferredTaxLiabilities_149" use="optional" order="85" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NoncurrentProvisions" xlink:label="loc_ifrs-full_NoncurrentProvisions_150" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentProvisions_150" use="optional" order="86" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayables_140" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_TradeAndOtherCurrentPayables_140" use="optional" order="87" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CurrentPortionOfLongtermBorrowings" xlink:label="loc_ifrs-full_CurrentPortionOfLongtermBorrowings_141" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentPortionOfLongtermBorrowings_141" use="optional" order="88" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CurrentLeaseLiabilities" xlink:label="loc_ifrs-full_CurrentLeaseLiabilities_142" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentLeaseLiabilities_142" use="optional" order="89" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:label="loc_ifrs-full_CurrentTaxLiabilitiesCurrent_143" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentTaxLiabilitiesCurrent_143" use="optional" order="90" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialLiabilities_144" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentDerivativeFinancialLiabilities_144" use="optional" order="91" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CurrentProvisions" xlink:label="loc_ifrs-full_CurrentProvisions_145" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentProvisions_145" use="optional" order="92" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CurrentLiabilities" xlink:label="loc_ifrs-full_CurrentLiabilities_146" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentLiabilities_146" use="optional" order="93" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_LongtermBorrowings" xlink:label="loc_ifrs-full_LongtermBorrowings_147" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_LongtermBorrowings_147" use="optional" order="94" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:label="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities_151" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities_151" use="optional" order="95" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherReserves" xlink:label="loc_ifrs-full_OtherReserves_162" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherReserves_162" use="optional" order="96" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_EquityAndLiabilities" xlink:label="loc_ifrs-full_EquityAndLiabilities_164" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_EquityAndLiabilities_164" use="optional" order="97" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_Liabilities" xlink:label="loc_ifrs-full_Liabilities_855733" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_Liabilities_855733" use="optional" order="98" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CurrentDerivativeFinancialAssets" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialAssets_855985" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentDerivativeFinancialAssets_855985" use="optional" order="99" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:label="loc_ifrs-full_CurrentRestrictedCashAndCashEquivalents_855986" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CurrentRestrictedCashAndCashEquivalents_855986" use="optional" order="100" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_InvestmentInFinancialAssets" xlink:label="loc_ctec_InvestmentInFinancialAssets_855987" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_InvestmentInFinancialAssets_855987" use="optional" order="101" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherNoncurrentPayables" xlink:label="loc_ifrs-full_OtherNoncurrentPayables_152" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_OtherNoncurrentPayables_152" use="optional" order="102" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NoncurrentLiabilities" xlink:label="loc_ifrs-full_NoncurrentLiabilities_153" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NoncurrentLiabilities_153" use="optional" order="103" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NetAssetsLiabilities" xlink:label="loc_ifrs-full_NetAssetsLiabilities_155" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NetAssetsLiabilities_155" use="optional" order="104" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IssuedCapital" xlink:label="loc_ifrs-full_IssuedCapital_156" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_IssuedCapital_156" use="optional" order="105" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_SharePremium" xlink:label="loc_ifrs-full_SharePremium_157" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_SharePremium_157" use="optional" order="106" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_TreasuryShares" xlink:label="loc_ifrs-full_TreasuryShares_158" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_TreasuryShares_158" use="optional" order="107" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_RetainedEarnings" xlink:label="loc_ifrs-full_RetainedEarnings_159" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_RetainedEarnings_159" use="optional" order="108" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_MergerReserve" xlink:label="loc_ifrs-full_MergerReserve_160" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_MergerReserve_160" use="optional" order="109" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslation" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslation_161" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslation_161" use="optional" order="110" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification" xlink:label="loc_ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification_401" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification_401" use="optional" order="111" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_PrincipalPlaceOfBusiness" xlink:label="loc_ifrs-full_PrincipalPlaceOfBusiness_402" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_PrincipalPlaceOfBusiness_402" use="optional" order="112" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AddressOfRegisteredOfficeOfEntity" xlink:label="loc_ifrs-full_AddressOfRegisteredOfficeOfEntity_403" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_AddressOfRegisteredOfficeOfEntity_403" use="optional" order="113" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CountryOfIncorporation" xlink:label="loc_ifrs-full_CountryOfIncorporation_404" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_CountryOfIncorporation_404" use="optional" order="114" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DateOfEndOfReportingPeriod2013" xlink:label="loc_ifrs-full_DateOfEndOfReportingPeriod2013_408" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DateOfEndOfReportingPeriod2013_408" use="optional" order="115" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DomicileOfEntity" xlink:label="loc_ifrs-full_DomicileOfEntity_409" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DomicileOfEntity_409" use="optional" order="116" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_LegalFormOfEntity" xlink:label="loc_ifrs-full_LegalFormOfEntity_410" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_LegalFormOfEntity_410" use="optional" order="117" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory" xlink:label="loc_ifrs-full_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory_411" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory_411" use="optional" order="118" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_412" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_412" use="optional" order="119" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_413" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_413" use="optional" order="120" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory_414" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory_414" use="optional" order="121" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_415" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_415" use="optional" order="122" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfRevenueExplanatory" xlink:label="loc_ifrs-full_DisclosureOfRevenueExplanatory_419" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRevenueExplanatory_419" use="optional" order="123" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_420" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_420" use="optional" order="124" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfOtherOperatingExpenseExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingExpenseExplanatory_421" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingExpenseExplanatory_421" use="optional" order="125" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory_422" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory_422" use="optional" order="126" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory_423" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory_423" use="optional" order="127" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfAuditorsRemunerationExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory_424" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory_424" use="optional" order="128" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:label="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory_425" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory_425" use="optional" order="129" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory_426" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory_426" use="optional" order="130" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfEarningsPerShareExplanatory" xlink:label="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory_427" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory_427" use="optional" order="131" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_428" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_428" use="optional" order="132" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory_429" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory_429" use="optional" order="133" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_430" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_430" use="optional" order="134" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfGoodwillExplanatory" xlink:label="loc_ifrs-full_DisclosureOfGoodwillExplanatory_431" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGoodwillExplanatory_431" use="optional" order="135" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_432" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_432" use="optional" order="136" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory_433" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory_433" use="optional" order="137" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfInventoriesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInventoriesExplanatory_434" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInventoriesExplanatory_434" use="optional" order="138" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_435" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_435" use="optional" order="139" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_436" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfAllowanceForCreditLossesExplanatory_436" use="optional" order="140" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfOtherCurrentAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherCurrentAssetsExplanatory_437" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherCurrentAssetsExplanatory_437" use="optional" order="141" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_439" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_439" use="optional" order="142" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfProvisionsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfProvisionsExplanatory_440" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfProvisionsExplanatory_440" use="optional" order="143" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NameOfParentEntity" xlink:label="loc_ifrs-full_NameOfParentEntity_405" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NameOfParentEntity_405" use="optional" order="144" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities" xlink:label="loc_ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities_406" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities_406" use="optional" order="145" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NameOfUltimateParentOfGroup" xlink:label="loc_ifrs-full_NameOfUltimateParentOfGroup_407" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_NameOfUltimateParentOfGroup_407" use="optional" order="146" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_450" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_450" use="optional" order="147" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_451" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_451" use="optional" order="148" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfLiquidityRiskExplanatory" xlink:label="loc_ifrs-full_DisclosureOfLiquidityRiskExplanatory_452" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLiquidityRiskExplanatory_452" use="optional" order="149" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory_453" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory_453" use="optional" order="150" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfDebtSecuritiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDebtSecuritiesExplanatory_444" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDebtSecuritiesExplanatory_444" use="optional" order="151" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:label="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_445" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_445" use="optional" order="152" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfTreasurySharesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfTreasurySharesExplanatory_446" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfTreasurySharesExplanatory_446" use="optional" order="153" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:label="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory_447" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory_447" use="optional" order="154" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory" xlink:label="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory_448" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory_448" use="optional" order="155" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfDividendsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDividendsExplanatory_449" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDividendsExplanatory_449" use="optional" order="156" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_441" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_441" use="optional" order="157" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_442" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_442" use="optional" order="158" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfBorrowingsExplanatory_454" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBorrowingsExplanatory_454" use="optional" order="159" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfBasisOfConsolidationExplanatory" xlink:label="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_463" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_463" use="optional" order="160" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfGoingConcernExplanatory" xlink:label="loc_ifrs-full_DisclosureOfGoingConcernExplanatory_464" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfGoingConcernExplanatory_464" use="optional" order="161" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_465" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_465" use="optional" order="162" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_466" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_466" use="optional" order="163" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_467" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_467" use="optional" order="164" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory_455" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory_455" use="optional" order="165" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfLeasesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfLeasesExplanatory_456" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfLeasesExplanatory_456" use="optional" order="166" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_457" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_457" use="optional" order="167" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_458" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_458" use="optional" order="168" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfCommitmentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsExplanatory_459" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsExplanatory_459" use="optional" order="169" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfContingentLiabilitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_460" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfContingentLiabilitiesExplanatory_460" use="optional" order="170" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:label="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory_461" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory_461" use="optional" order="171" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:label="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_462" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_462" use="optional" order="172" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory_468" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory_468" use="optional" order="173" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_477" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_477" use="optional" order="174" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_469" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_469" use="optional" order="175" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory_470" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory_470" use="optional" order="176" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_471" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory_471" use="optional" order="177" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_472" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_472" use="optional" order="178" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory_474" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory_474" use="optional" order="179" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_475" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_475" use="optional" order="180" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory_478" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory_478" use="optional" order="181" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_487" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_487" use="optional" order="182" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_488" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_488" use="optional" order="183" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_489" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_489" use="optional" order="184" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory_490" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory_490" use="optional" order="185" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory_803312" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory_803312" use="optional" order="186" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_803313" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_803313" use="optional" order="187" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_803314" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_803314" use="optional" order="188" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForRestrictedCashAndCashEquivalentsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRestrictedCashAndCashEquivalentsExplanatory_479" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForRestrictedCashAndCashEquivalentsExplanatory_479" use="optional" order="189" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory_480" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory_480" use="optional" order="190" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_481" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_481" use="optional" order="191" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_482" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_482" use="optional" order="192" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory_483" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory_483" use="optional" order="193" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_484" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_484" use="optional" order="194" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory_485" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory_485" use="optional" order="195" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_486" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_486" use="optional" order="196" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_803315" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_803315" use="optional" order="197" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory_830091" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory_830091" use="optional" order="198" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_803316" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_803316" use="optional" order="199" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_803322" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory_803322" use="optional" order="200" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory_803323" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory_803323" use="optional" order="201" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_803324" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_803324" use="optional" order="202" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinanceCostsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceCostsExplanatory_803334" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceCostsExplanatory_803334" use="optional" order="203" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfFinanceIncomeExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFinanceIncomeExplanatory_803341" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinanceIncomeExplanatory_803341" use="optional" order="204" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfFinanceCostExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFinanceCostExplanatory_803342" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfFinanceCostExplanatory_803342" use="optional" order="205" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_803353" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_803353" use="optional" order="206" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_DescriptionOfAccountingPolicyForBasisOfAccountingAndPresentationPolicyTextBlock" xlink:label="loc_ctec_DescriptionOfAccountingPolicyForBasisOfAccountingAndPresentationPolicyTextBlock_856288" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_DescriptionOfAccountingPolicyForBasisOfAccountingAndPresentationPolicyTextBlock_856288" use="optional" order="207" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_DisclosureOfRevenueAndSegmentalInformationTextBlock" xlink:label="loc_ctec_DisclosureOfRevenueAndSegmentalInformationTextBlock_856292" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_DisclosureOfRevenueAndSegmentalInformationTextBlock_856292" use="optional" order="208" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_DescriptionOfAccountingPolicyForRevenueAndSegmentalInformationPolicyTextBlock" xlink:label="loc_ctec_DescriptionOfAccountingPolicyForRevenueAndSegmentalInformationPolicyTextBlock_856293" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_DescriptionOfAccountingPolicyForRevenueAndSegmentalInformationPolicyTextBlock_856293" use="optional" order="209" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_DisclosureOfNonOperatingExpenseIncomeNetTextBlock" xlink:label="loc_ctec_DisclosureOfNonOperatingExpenseIncomeNetTextBlock_856295" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_DisclosureOfNonOperatingExpenseIncomeNetTextBlock_856295" use="optional" order="210" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_DescriptionOfAccountingPolicyForDivestituresPolicyTextBlock" xlink:label="loc_ctec_DescriptionOfAccountingPolicyForDivestituresPolicyTextBlock_856296" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_DescriptionOfAccountingPolicyForDivestituresPolicyTextBlock_856296" use="optional" order="211" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_DisclosureOfCapitalStructureAndNetDebtTextBlock" xlink:label="loc_ctec_DisclosureOfCapitalStructureAndNetDebtTextBlock_856298" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_DisclosureOfCapitalStructureAndNetDebtTextBlock_856298" use="optional" order="212" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory_858258" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory_858258" use="optional" order="213" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_858261" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_858261" use="optional" order="214" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_858262" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_858262" use="optional" order="215" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DescriptionOfAccountingPolicyForDecommissioningRestorationAndRehabilitationProvisionsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDecommissioningRestorationAndRehabilitationProvisionsExplanatory_858263" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDecommissioningRestorationAndRehabilitationProvisionsExplanatory_858263" use="optional" order="216" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory_858266" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ifrs-full_DisclosureOfRestrictedCashAndCashEquivalentsExplanatory_858266" use="optional" order="217" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_DescriptionOfAccountingPolicyForAcquisitionsPolicyTextBlock" xlink:label="loc_ctec_DescriptionOfAccountingPolicyForAcquisitionsPolicyTextBlock_856297" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_DescriptionOfAccountingPolicyForAcquisitionsPolicyTextBlock_856297" use="optional" order="218" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_DisclosureOfDivestituresExplanatoryTextBlock" xlink:label="loc_ctec_DisclosureOfDivestituresExplanatoryTextBlock_861034" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_LineItemsNotDimensionallyQualifiedPlaceholder" xlink:to="loc_ctec_DisclosureOfDivestituresExplanatoryTextBlock_861034" use="optional" order="219" />
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.convatecgroup.com/role/Anchoring">
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="ProfitLossBeforeTax" xlink:title="ProfitLossBeforeTax" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_NonOperatingExpenseIncomeNet" xlink:label="NonOperatingExpenseIncomeNet" xlink:title="NonOperatingExpenseIncomeNet" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="ProfitLossBeforeTax" xlink:to="NonOperatingExpenseIncomeNet" xlink:title="definition: ProfitLossBeforeTax to NonOperatingExpenseIncomeNet" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherGainsLosses" xlink:label="OtherGainsLosses" xlink:title="OtherGainsLosses" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="NonOperatingExpenseIncomeNet" xlink:to="OtherGainsLosses" xlink:title="definition: NonOperatingExpenseIncomeNet to OtherGainsLosses" order="2.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="ProfitLossFromOperatingActivities" xlink:title="ProfitLossFromOperatingActivities" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_OperatingExpensesExcludingCostOfSales" xlink:label="OperatingExpensesExcludingCostOfSales" xlink:title="OperatingExpensesExcludingCostOfSales" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="ProfitLossFromOperatingActivities" xlink:to="OperatingExpensesExcludingCostOfSales" xlink:title="definition: ProfitLossFromOperatingActivities to OperatingExpensesExcludingCostOfSales" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_DistributionCosts" xlink:label="DistributionCosts" xlink:title="DistributionCosts" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OperatingExpensesExcludingCostOfSales" xlink:to="DistributionCosts" xlink:title="definition: OperatingExpensesExcludingCostOfSales to DistributionCosts" order="2.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_SellingExpense" xlink:label="SellingExpense" xlink:title="SellingExpense" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OperatingExpensesExcludingCostOfSales" xlink:to="SellingExpense" xlink:title="definition: OperatingExpensesExcludingCostOfSales to SellingExpense" order="2.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherAdjustmentsForNoncashItems" xlink:label="OtherAdjustmentsForNoncashItems" xlink:title="OtherAdjustmentsForNoncashItems" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForNonOperatingExpenseNet" xlink:label="AdjustmentsForNonOperatingExpenseNet" xlink:title="AdjustmentsForNonOperatingExpenseNet" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OtherAdjustmentsForNoncashItems" xlink:to="AdjustmentsForNonOperatingExpenseNet" xlink:title="definition: OtherAdjustmentsForNoncashItems to AdjustmentsForNonOperatingExpenseNet" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:label="ImpairmentLossRecognisedInProfitOrLoss" xlink:title="ImpairmentLossRecognisedInProfitOrLoss" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForImpairmentAndWriteOffOfIntangiblesAssets" xlink:label="AdjustmentsForImpairmentAndWriteOffOfIntangiblesAssets" xlink:title="AdjustmentsForImpairmentAndWriteOffOfIntangiblesAssets" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="ImpairmentLossRecognisedInProfitOrLoss" xlink:to="AdjustmentsForImpairmentAndWriteOffOfIntangiblesAssets" xlink:title="definition: ImpairmentLossRecognisedInProfitOrLoss to AdjustmentsForImpairmentAndWriteOffOfIntangiblesAssets" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:label="AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:title="AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForImpairmentAndWriteOffOfPropertyPlantAndEquipment" xlink:label="AdjustmentsForImpairmentAndWriteOffOfPropertyPlantAndEquipment" xlink:title="AdjustmentsForImpairmentAndWriteOffOfPropertyPlantAndEquipment" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="AdjustmentsForImpairmentAndWriteOffOfPropertyPlantAndEquipment" xlink:title="definition: AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss to AdjustmentsForImpairmentAndWriteOffOfPropertyPlantAndEquipment" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:label="AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:title="AdjustmentsForDecreaseIncreaseInOtherAssets" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForOtherNonCurrentReceivables" xlink:label="AdjustmentsForOtherNonCurrentReceivables" xlink:title="AdjustmentsForOtherNonCurrentReceivables" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:to="AdjustmentsForOtherNonCurrentReceivables" xlink:title="definition: AdjustmentsForDecreaseIncreaseInOtherAssets to AdjustmentsForOtherNonCurrentReceivables" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents" xlink:label="CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents" xlink:title="CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForRestrictedCash" xlink:label="AdjustmentsForRestrictedCash" xlink:title="AdjustmentsForRestrictedCash" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents" xlink:to="AdjustmentsForRestrictedCash" xlink:title="definition: CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents to AdjustmentsForRestrictedCash" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:label="AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:title="AdjustmentsForIncreaseDecreaseInOtherLiabilities" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForIncreaseDecreaseInOtherNonCurrentPayables" xlink:label="AdjustmentsForIncreaseDecreaseInOtherNonCurrentPayables" xlink:title="AdjustmentsForIncreaseDecreaseInOtherNonCurrentPayables" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:to="AdjustmentsForIncreaseDecreaseInOtherNonCurrentPayables" xlink:title="definition: AdjustmentsForIncreaseDecreaseInOtherLiabilities to AdjustmentsForIncreaseDecreaseInOtherNonCurrentPayables" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:label="IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:title="IncreaseDecreaseThroughTransfersAndOtherChangesEquity" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity" xlink:label="IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity" xlink:title="IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:to="IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity" xlink:title="definition: IncreaseDecreaseThroughTransfersAndOtherChangesEquity to IncreaseDecreaseThroughTransferBetweenIssuedCapitalSharePremiumAndRetainedEarningsEquity" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:label="OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:title="OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_OtherComprehensiveIncomeBeforeTaxChangeInPensionAssetRestriction" xlink:label="OtherComprehensiveIncomeBeforeTaxChangeInPensionAssetRestriction" xlink:title="OtherComprehensiveIncomeBeforeTaxChangeInPensionAssetRestriction" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:to="OtherComprehensiveIncomeBeforeTaxChangeInPensionAssetRestriction" xlink:title="definition: OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans to OtherComprehensiveIncomeBeforeTaxChangeInPensionAssetRestriction" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="OtherComprehensiveIncome" xlink:title="OtherComprehensiveIncome" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_RealisationOfCumulativeTranslationAdjustments" xlink:label="RealisationOfCumulativeTranslationAdjustments" xlink:title="RealisationOfCumulativeTranslationAdjustments" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OtherComprehensiveIncome" xlink:to="RealisationOfCumulativeTranslationAdjustments" xlink:title="definition: OtherComprehensiveIncome to RealisationOfCumulativeTranslationAdjustments" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_NoncurrentAssets" xlink:label="NoncurrentAssets" xlink:title="NoncurrentAssets" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_InvestmentInFinancialAssets" xlink:label="InvestmentInFinancialAssets" xlink:title="InvestmentInFinancialAssets" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="NoncurrentAssets" xlink:to="InvestmentInFinancialAssets" xlink:title="definition: NoncurrentAssets to InvestmentInFinancialAssets" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_AdjustmentsForDepreciationExpense" xlink:label="AdjustmentsForDepreciationExpense" xlink:title="AdjustmentsForDepreciationExpense" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForDepreciationOfPropertyPlantAndEquipment" xlink:label="AdjustmentsForDepreciationOfPropertyPlantAndEquipment" xlink:title="AdjustmentsForDepreciationOfPropertyPlantAndEquipment" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="AdjustmentsForDepreciationExpense" xlink:to="AdjustmentsForDepreciationOfPropertyPlantAndEquipment" xlink:title="definition: AdjustmentsForDepreciationExpense to AdjustmentsForDepreciationOfPropertyPlantAndEquipment" order="1.0" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AdjustmentsForDepreciationOfRightOfUseAssets" xlink:label="AdjustmentsForDepreciationOfRightOfUseAssets" xlink:title="AdjustmentsForDepreciationOfRightOfUseAssets" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="AdjustmentsForDepreciationExpense" xlink:to="AdjustmentsForDepreciationOfRightOfUseAssets" xlink:title="definition: AdjustmentsForDepreciationExpense to AdjustmentsForDepreciationOfRightOfUseAssets" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="CashFlowsFromUsedInInvestingActivities" xlink:title="CashFlowsFromUsedInInvestingActivities" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_ProceedsFromDivestiture" xlink:label="ProceedsFromDivestiture" xlink:title="ProceedsFromDivestiture" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="ProceedsFromDivestiture" xlink:title="definition: CashFlowsFromUsedInInvestingActivities to ProceedsFromDivestiture" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="ProceedsFromDivestiture" xlink:to="ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="definition: ProceedsFromDivestiture to ProceedsFromSalesOfIntangibleAssetsClassifiedAsInvestingActivities" order="2.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:label="CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:title="CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="ProceedsFromDivestiture" xlink:to="CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:title="definition: ProceedsFromDivestiture to CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" order="2.0" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_PaymentOfContingentConsiderationArisingFromAcquisitions" xlink:label="PaymentOfContingentConsiderationArisingFromAcquisitions" xlink:title="PaymentOfContingentConsiderationArisingFromAcquisitions" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="PaymentOfContingentConsiderationArisingFromAcquisitions" xlink:title="definition: CashFlowsFromUsedInInvestingActivities to PaymentOfContingentConsiderationArisingFromAcquisitions" order="1.0" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" xlink:label="AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" xlink:title="AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="CashFlowsFromUsedInInvestingActivities" xlink:to="AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" xlink:title="definition: CashFlowsFromUsedInInvestingActivities to AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" xlink:to="PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="definition: AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets to PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" order="2.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:title="PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets" xlink:to="PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:title="definition: AcquisitionOfPropertyPlantAndEquipmentAndIntangibleAssets to PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" order="2.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_ChangesInEquity" xlink:label="ChangesInEquity" xlink:title="ChangesInEquity" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_ChangeInPensionAssetRestriction" xlink:label="ChangeInPensionAssetRestriction" xlink:title="ChangeInPensionAssetRestriction" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="ChangesInEquity" xlink:to="ChangeInPensionAssetRestriction" xlink:title="definition: ChangesInEquity to ChangeInPensionAssetRestriction" order="1.0" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_RealisationOfCumulativeTranslationAdjustment" xlink:label="RealisationOfCumulativeTranslationAdjustment" xlink:title="RealisationOfCumulativeTranslationAdjustment" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="ChangesInEquity" xlink:to="RealisationOfCumulativeTranslationAdjustment" xlink:title="definition: ChangesInEquity to RealisationOfCumulativeTranslationAdjustment" order="1.0" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxCashFlowHedges" xlink:label="OtherComprehensiveIncomeBeforeTaxCashFlowHedges" xlink:title="OtherComprehensiveIncomeBeforeTaxCashFlowHedges" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_EffectivePortionOfChangesInFairValueOfCashFlowHedges" xlink:label="EffectivePortionOfChangesInFairValueOfCashFlowHedges" xlink:title="EffectivePortionOfChangesInFairValueOfCashFlowHedges" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OtherComprehensiveIncomeBeforeTaxCashFlowHedges" xlink:to="EffectivePortionOfChangesInFairValueOfCashFlowHedges" xlink:title="definition: OtherComprehensiveIncomeBeforeTaxCashFlowHedges to EffectivePortionOfChangesInFairValueOfCashFlowHedges" order="1.0" />
    <loc xlink:type="locator" xlink:href="213800LS272L4FIDOH92-2022-12-31.xsd#ctec_CostsOfHedging" xlink:label="CostsOfHedging" xlink:title="CostsOfHedging" />
    <definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="OtherComprehensiveIncomeBeforeTaxCashFlowHedges" xlink:to="CostsOfHedging" xlink:title="definition: OtherComprehensiveIncomeBeforeTaxCashFlowHedges to CostsOfHedging" order="1.0" />
  </definitionLink>
</linkbase>