﻿<?xml version="1.0" encoding="utf-8" standalone="no"?>
<?taxonomy-version 1.0.0.0?>
<?taxonomy-date 2023-03-21?>
<!--This is a generated XML file-->
<link:linkbase xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <link: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" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" />
  <link: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" />
  <link: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" />
  <link: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" />
  <link:roleRef roleURI="https://www.biomerieux.com/content/registration-documents/role/PlAnnexes" xlink:type="simple" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#PlAnnexes" />
  <link:roleRef roleURI="https://www.biomerieux.com/content/registration-documents/role/ResultatGlobalAnnexes" xlink:type="simple" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#ResultatGlobalAnnexes" />
  <link:roleRef roleURI="https://www.biomerieux.com/content/registration-documents/role/BilanAnnexes" xlink:type="simple" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#BilanAnnexes" />
  <link:roleRef roleURI="https://www.biomerieux.com/content/registration-documents/role/VarcpCpAnnexe" xlink:type="simple" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#VarcpCpAnnexe" />
  <link:roleRef roleURI="https://www.biomerieux.com/content/registration-documents/role/TftAnnexe" xlink:type="simple" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#TftAnnexe" />
  <link:roleRef roleURI="https://www.biomerieux.com/content/registration-documents/role/Generalinformationaboutfinancialstatements" xlink:type="simple" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#Generalinformationaboutfinancialstatements" />
  <link:roleRef roleURI="http://www.esma.europa.eu/xbrl/role/cor/esef_role-999999" xlink:type="simple" xlink:href="http://www.esma.europa.eu/taxonomy/2021-03-24/esef_cor.xsd#esef_role-999999" />
  <link:roleRef roleURI="https://www.biomerieux.com/content/registration-documents/role/Anchoring" xlink:type="simple" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#Anchoring" />
  <link:definitionLink xlink:type="extended" xlink:role="https://www.biomerieux.com/content/registration-documents/role/PlAnnexes">
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_GrossProfitAbstract" xlink:label="loc_bioMerieux_GrossProfitAbstract" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_GrossProfitAbstract" xlink:to="loc_ifrs-full_Revenue" order="0" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_GrossProfitAbstract" xlink:to="loc_ifrs-full_CostOfSales" order="1" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_GrossProfitAbstract" xlink:to="loc_ifrs-full_GrossProfit" order="2" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OperatingIncomeBeforeNonRecurringItemsAbstract" xlink:label="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItemsAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItemsAbstract" xlink:to="loc_bioMerieux_GrossProfitAbstract" order="3" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherOperatingIncomeAndExpenses" xlink:label="loc_bioMerieux_OtherOperatingIncomeAndExpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItemsAbstract" xlink:to="loc_bioMerieux_OtherOperatingIncomeAndExpenses" order="4" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TotalOperatingExpensesAbstract" xlink:label="loc_bioMerieux_TotalOperatingExpensesAbstract" />
    <link: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="loc_ifrs-full_DistributionCosts" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_TotalOperatingExpensesAbstract" xlink:to="loc_ifrs-full_DistributionCosts" order="5" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_TotalOperatingExpensesAbstract" xlink:to="loc_ifrs-full_GeneralAndAdministrativeExpense" order="6" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_TotalOperatingExpensesAbstract" xlink:to="loc_ifrs-full_ResearchAndDevelopmentExpense" order="7" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TotalOperatingExpenses" xlink:label="loc_bioMerieux_TotalOperatingExpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_TotalOperatingExpensesAbstract" xlink:to="loc_bioMerieux_TotalOperatingExpenses" order="8" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItemsAbstract" xlink:to="loc_bioMerieux_TotalOperatingExpensesAbstract" order="9" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_AmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssetsAndAcquisitionCosts" xlink:label="loc_bioMerieux_AmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssetsAndAcquisitionCosts" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItemsAbstract" xlink:to="loc_bioMerieux_AmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssetsAndAcquisitionCosts" order="10" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OperatingIncomeBeforeNonRecurringItems" xlink:label="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItems" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItemsAbstract" xlink:to="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItems" order="11" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ProfitLossFromOperatingActivitiesAbstract" xlink:label="loc_bioMerieux_ProfitLossFromOperatingActivitiesAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ProfitLossFromOperatingActivitiesAbstract" xlink:to="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItemsAbstract" order="12" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherNonRecurringIncomeExpenses" xlink:label="loc_bioMerieux_OtherNonRecurringIncomeExpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ProfitLossFromOperatingActivitiesAbstract" xlink:to="loc_bioMerieux_OtherNonRecurringIncomeExpenses" order="13" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ProfitLossFromOperatingActivitiesAbstract" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities" order="14" />
    <link: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_ProfitLossAbstract" xlink:label="loc_ifrs-full_ProfitLossAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract" xlink:to="loc_bioMerieux_ProfitLossFromOperatingActivitiesAbstract" order="15" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_CostOfNetFinancialDebt" xlink:label="loc_bioMerieux_CostOfNetFinancialDebt" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract" xlink:to="loc_bioMerieux_CostOfNetFinancialDebt" order="16" />
    <link: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_OtherFinanceIncomeCost" xlink:label="loc_ifrs-full_OtherFinanceIncomeCost" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract" xlink:to="loc_ifrs-full_OtherFinanceIncomeCost" order="17" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" order="18" />
    <link: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_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:label="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract" xlink:to="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" order="19" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ProfitLossAbstract" xlink:to="loc_ifrs-full_ProfitLoss" order="20" />
    <link: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_IncomeStatementAbstract" xlink:label="loc_ifrs-full_IncomeStatementAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncomeStatementAbstract" xlink:to="loc_ifrs-full_ProfitLossAbstract" order="21" />
    <link: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_ProfitLossAttributableToNoncontrollingInterests" xlink:label="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncomeStatementAbstract" xlink:to="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" order="22" />
    <link: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_ProfitLossAttributableToOwnersOfParent" xlink:label="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncomeStatementAbstract" xlink:to="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent" order="23" />
    <link: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_BasicEarningsLossPerShareFromContinuingOperations" xlink:label="loc_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncomeStatementAbstract" xlink:to="loc_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" order="24" />
    <link: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_DilutedEarningsLossPerShareFromContinuingOperations" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IncomeStatementAbstract" xlink:to="loc_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" order="25" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.biomerieux.com/content/registration-documents/role/ResultatGlobalAnnexes">
    <link: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_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" xlink:label="loc_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" xlink:to="loc_ifrs-full_ProfitLoss" order="0" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:label="loc_bioMerieux_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" />
    <link: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_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" order="1" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:to="loc_bioMerieux_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" order="2" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHeddingInstruments" xlink:label="loc_bioMerieux_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHeddingInstruments" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="loc_bioMerieux_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHeddingInstruments" order="3" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" order="4" />
    <link: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_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" order="5" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:label="loc_bioMerieux_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" />
    <link: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_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" order="6" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:to="loc_bioMerieux_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" order="7" />
    <link: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_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments" order="8" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_IncomeTaxRelatingFairValueGainsLossesOnFinancialAssets" xlink:label="loc_bioMerieux_IncomeTaxRelatingFairValueGainsLossesOnFinancialAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="loc_bioMerieux_IncomeTaxRelatingFairValueGainsLossesOnFinancialAssets" order="9" />
    <link: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="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" order="10" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_IncomeTaxRelatingToRemeasurementOfEmployeeBenefits" xlink:label="loc_bioMerieux_IncomeTaxRelatingToRemeasurementOfEmployeeBenefits" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="loc_bioMerieux_IncomeTaxRelatingToRemeasurementOfEmployeeBenefits" order="11" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:to="loc_ifrs-full_OtherComprehensiveIncome" order="12" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeAbstract" order="13" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" xlink:to="loc_ifrs-full_ComprehensiveIncome" order="14" />
    <link: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_StatementOfComprehensiveIncomeAbstract" xlink:label="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:to="loc_ifrs-full_ComprehensiveIncomeContinuingAndDiscontinuedOperationsAbstract" order="15" />
    <link: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_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:to="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" order="16" />
    <link: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_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:to="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" order="17" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.biomerieux.com/content/registration-documents/role/BilanAnnexes">
    <link: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_NoncurrentAssetsAbstract" xlink:label="loc_ifrs-full_NoncurrentAssetsAbstract" />
    <link: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_Goodwill" xlink:label="loc_ifrs-full_Goodwill" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="loc_ifrs-full_Goodwill" order="0" />
    <link: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_IntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" order="1" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment" order="2" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="loc_ifrs-full_RightofuseAssets" order="3" />
    <link: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_NoncurrentFinancialAssets" xlink:label="loc_ifrs-full_NoncurrentFinancialAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="loc_ifrs-full_NoncurrentFinancialAssets" order="4" />
    <link: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_InvestmentAccountedForUsingEquityMethod" xlink:label="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" order="5" />
    <link: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_NoncurrentFinanceLeaseReceivables" xlink:label="loc_ifrs-full_NoncurrentFinanceLeaseReceivables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="loc_ifrs-full_NoncurrentFinanceLeaseReceivables" order="6" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="loc_ifrs-full_DeferredTaxAssets" order="7" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="loc_ifrs-full_NoncurrentAssets" order="8" />
    <link: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_AssetsAbstract" xlink:label="loc_ifrs-full_AssetsAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract" xlink:to="loc_ifrs-full_NoncurrentAssetsAbstract" order="9" />
    <link: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_CurrentAssetsAbstract" xlink:label="loc_ifrs-full_CurrentAssetsAbstract" />
    <link: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_InventoriesTotal" xlink:label="loc_ifrs-full_InventoriesTotal" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentAssetsAbstract" xlink:to="loc_ifrs-full_InventoriesTotal" order="10" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" xlink:label="loc_bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentAssetsAbstract" xlink:to="loc_bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" order="11" />
    <link: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_OtherCurrentReceivables" xlink:label="loc_ifrs-full_OtherCurrentReceivables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentAssetsAbstract" xlink:to="loc_ifrs-full_OtherCurrentReceivables" order="12" />
    <link: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_CurrentTaxAssets" xlink:label="loc_ifrs-full_CurrentTaxAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentAssetsAbstract" xlink:to="loc_ifrs-full_CurrentTaxAssets" order="13" />
    <link: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_OtherCurrentAssets" xlink:label="loc_ifrs-full_OtherCurrentAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentAssetsAbstract" xlink:to="loc_ifrs-full_OtherCurrentAssets" order="14" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentAssetsAbstract" xlink:to="loc_ifrs-full_CashAndCashEquivalents" order="15" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentAssetsAbstract" xlink:to="loc_ifrs-full_CurrentAssets" order="16" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract" xlink:to="loc_ifrs-full_CurrentAssetsAbstract" order="17" />
    <link: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_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:label="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract" xlink:to="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" order="18" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract" xlink:to="loc_ifrs-full_Assets" order="19" />
    <link: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_StatementOfFinancialPositionAbstract" xlink:label="loc_ifrs-full_StatementOfFinancialPositionAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="loc_ifrs-full_AssetsAbstract" order="20" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_EquityAttributableToOwnersOfParentAbstract" xlink:label="loc_bioMerieux_EquityAttributableToOwnersOfParentAbstract" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EquityAttributableToOwnersOfParentAbstract" xlink:to="loc_ifrs-full_IssuedCapital" order="21" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TotalSharePremiumAndRetainedEarnings" xlink:label="loc_bioMerieux_TotalSharePremiumAndRetainedEarnings" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EquityAttributableToOwnersOfParentAbstract" xlink:to="loc_bioMerieux_TotalSharePremiumAndRetainedEarnings" order="22" />
    <link: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_RetainedEarningsProfitLossForReportingPeriod" xlink:label="loc_ifrs-full_RetainedEarningsProfitLossForReportingPeriod" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EquityAttributableToOwnersOfParentAbstract" xlink:to="loc_ifrs-full_RetainedEarningsProfitLossForReportingPeriod" order="23" />
    <link: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_EquityAttributableToOwnersOfParent" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EquityAttributableToOwnersOfParentAbstract" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParent" order="24" />
    <link: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_EquityAbstract" xlink:label="loc_ifrs-full_EquityAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract" xlink:to="loc_bioMerieux_EquityAttributableToOwnersOfParentAbstract" order="25" />
    <link: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_NoncontrollingInterests" xlink:label="loc_ifrs-full_NoncontrollingInterests" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract" xlink:to="loc_ifrs-full_NoncontrollingInterests" order="26" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAbstract" xlink:to="loc_ifrs-full_Equity" order="27" />
    <link: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_EquityAndLiabilitiesAbstract" xlink:label="loc_ifrs-full_EquityAndLiabilitiesAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAndLiabilitiesAbstract" xlink:to="loc_ifrs-full_EquityAbstract" order="28" />
    <link: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_NoncurrentLiabilitiesAbstract" xlink:label="loc_ifrs-full_NoncurrentLiabilitiesAbstract" />
    <link: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_NoncurrentFinancialLiabilities" xlink:label="loc_ifrs-full_NoncurrentFinancialLiabilities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_NoncurrentFinancialLiabilities" order="29" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_DeferredTaxLiabilities" order="30" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_NoncurrentProvisions" order="31" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_NoncurrentLiabilities" order="32" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAndLiabilitiesAbstract" xlink:to="loc_ifrs-full_NoncurrentLiabilitiesAbstract" order="33" />
    <link: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_CurrentLiabilitiesAbstract" xlink:label="loc_ifrs-full_CurrentLiabilitiesAbstract" />
    <link: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_CurrentFinancialLiabilities" xlink:label="loc_ifrs-full_CurrentFinancialLiabilities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_CurrentFinancialLiabilities" order="34" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_CurrentProvisions" order="35" />
    <link: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_TradeAndOtherPayablesToTradeSuppliers" xlink:label="loc_ifrs-full_TradeAndOtherPayablesToTradeSuppliers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_TradeAndOtherPayablesToTradeSuppliers" order="36" />
    <link: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_OtherCurrentPayables" xlink:label="loc_ifrs-full_OtherCurrentPayables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_OtherCurrentPayables" order="37" />
    <link: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_CurrentTaxLiabilities" xlink:label="loc_ifrs-full_CurrentTaxLiabilities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_CurrentTaxLiabilities" order="38" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_NonOperatingPayables" xlink:label="loc_bioMerieux_NonOperatingPayables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:to="loc_bioMerieux_NonOperatingPayables" order="39" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CurrentLiabilitiesAbstract" xlink:to="loc_ifrs-full_CurrentLiabilities" order="40" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAndLiabilitiesAbstract" xlink:to="loc_ifrs-full_CurrentLiabilitiesAbstract" order="41" />
    <link: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_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:label="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAndLiabilitiesAbstract" xlink:to="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="42" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAndLiabilitiesAbstract" xlink:to="loc_ifrs-full_EquityAndLiabilities" order="43" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="loc_ifrs-full_EquityAndLiabilitiesAbstract" order="44" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.biomerieux.com/content/registration-documents/role/VarcpCpAnnexe">
    <link: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_StatementOfChangesInEquityAbstract" xlink:label="loc_ifrs-full_StatementOfChangesInEquityAbstract" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract" xlink:to="loc_ifrs-full_StatementOfChangesInEquityTable" xbrldt:contextElement="scenario" xbrldt:closed="true" order="0" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract" xlink:to="loc_ifrs-full_StatementOfChangesInEquityLineItems" order="1" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable" xlink:to="loc_ifrs-full_ComponentsOfEquityAxis" order="2" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis" xlink:to="loc_ifrs-full_EquityMember" order="3" />
    <link: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_EquityAttributableToOwnersOfParentMember" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:to="loc_ifrs-full_IssuedCapitalMember" order="4" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_SharePremiumAndRetainedEarnings" xlink:label="loc_bioMerieux_SharePremiumAndRetainedEarnings" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember" xlink:to="loc_bioMerieux_SharePremiumAndRetainedEarnings" order="5" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:to="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" order="6" />
    <link: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_ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember" xlink:label="loc_ifrs-full_ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:to="loc_ifrs-full_ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember" order="7" />
    <link: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_ReserveOfRemeasurementsOfDefinedBenefitPlansMember" xlink:label="loc_ifrs-full_ReserveOfRemeasurementsOfDefinedBenefitPlansMember" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:to="loc_ifrs-full_ReserveOfRemeasurementsOfDefinedBenefitPlansMember" order="8" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:to="loc_ifrs-full_TreasurySharesMember" order="9" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ThisMemberStandsForAComponentOfEquityResultingFromShareBasedPayments" xlink:label="loc_bioMerieux_ThisMemberStandsForAComponentOfEquityResultingFromShareBasedPayments" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember" xlink:to="loc_bioMerieux_ThisMemberStandsForAComponentOfEquityResultingFromShareBasedPayments" order="10" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TotalSharePremiumAndRetainedEarningsGroup" xlink:label="loc_bioMerieux_TotalSharePremiumAndRetainedEarningsGroup" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember" xlink:to="loc_bioMerieux_TotalSharePremiumAndRetainedEarningsGroup" order="11" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_NetResult" xlink:label="loc_bioMerieux_NetResult" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember" xlink:to="loc_bioMerieux_NetResult" order="12" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" order="13" />
    <link: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_NoncontrollingInterestsMember" xlink:label="loc_ifrs-full_NoncontrollingInterestsMember" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_EquityMember" xlink:to="loc_ifrs-full_NoncontrollingInterestsMember" order="14" />
    <link: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_ChangesInEquityAbstract" xlink:label="loc_ifrs-full_ChangesInEquityAbstract" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="loc_ifrs-full_ComprehensiveIncome" order="15" />
    <link: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_IncreaseDecreaseThroughAppropriationOfRetainedEarnings" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughAppropriationOfRetainedEarnings" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughAppropriationOfRetainedEarnings" order="16" />
    <link: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_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears" xlink:label="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears" order="17" />
    <link: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_IncreaseDecreaseThroughTreasuryShareTransactions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTreasuryShareTransactions" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTreasuryShareTransactions" order="18" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" order="19" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ShareBasedPayments" xlink:label="loc_bioMerieux_ShareBasedPayments" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="loc_bioMerieux_ShareBasedPayments" order="20" />
    <link: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_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" order="21" />
    <link: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="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" order="22" />
    <link: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="loc_ifrs-full_ChangesInEquity" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="loc_ifrs-full_ChangesInEquity" order="23" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="loc_ifrs-full_Equity" order="24" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="loc_ifrs-full_ChangesInEquityAbstract" order="25" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="loc_ifrs-full_SharePremium" order="27" />
    <link: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_DividendsPaidOrdinarySharesPerShare" xlink:label="loc_ifrs-full_DividendsPaidOrdinarySharesPerShare" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="loc_ifrs-full_DividendsPaidOrdinarySharesPerShare" order="28" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_NumberOfTreasuryShares" xlink:label="loc_bioMerieux_NumberOfTreasuryShares" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="loc_bioMerieux_NumberOfTreasuryShares" order="29" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="loc_ifrs-full_OtherReserves" order="30" />
    <link: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_NumberOfSharesIssued" xlink:label="loc_ifrs-full_NumberOfSharesIssued" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="loc_ifrs-full_NumberOfSharesIssued" order="31" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.biomerieux.com/content/registration-documents/role/TftAnnexe">
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" xlink:label="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" xlink:to="loc_ifrs-full_ProfitLoss" order="0" />
    <link: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_AdjustmentsForUndistributedProfitsOfAssociates" xlink:label="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfAssociates" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" xlink:to="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfAssociates" order="1" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_CostOfNetFinancialDebtReintegratedCashFlow" xlink:label="loc_bioMerieux_CostOfNetFinancialDebtReintegratedCashFlow" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" xlink:to="loc_bioMerieux_CostOfNetFinancialDebtReintegratedCashFlow" order="2" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" xlink:to="loc_ifrs-full_AdjustmentsForFinanceIncomeCost" order="3" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" xlink:to="loc_ifrs-full_AdjustmentsForIncomeTaxExpense" order="4" />
    <link: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_AdjustmentsForDepreciationAndAmortisationExpense" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" xlink:to="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" order="5" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_NonRecurringIncomeAndExpenseAndAmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssets" xlink:label="loc_bioMerieux_NonRecurringIncomeAndExpenseAndAmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" xlink:to="loc_bioMerieux_NonRecurringIncomeAndExpenseAndAmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssets" order="6" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_EbitdaBeforeNonRecurringItems" xlink:label="loc_bioMerieux_EbitdaBeforeNonRecurringItems" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" xlink:to="loc_bioMerieux_EbitdaBeforeNonRecurringItems" order="7" />
    <link: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_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="loc_bioMerieux_EbitdaBeforeNonRecurringItemsAbstract" order="8" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherAdjustmentsToReconcileProfitLossAbstract" xlink:label="loc_bioMerieux_OtherAdjustmentsToReconcileProfitLossAbstract" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherNonRecurringIncomeExpensesExcludingNonRecurringProvisionsForImpairmentAndCapitalGainsAndLossesOnDisposalsOfFixedAssets" xlink:label="loc_bioMerieux_OtherNonRecurringIncomeExpensesExcludingNonRecurringProvisionsForImpairmentAndCapitalGainsAndLossesOnDisposalsOfFixedAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherAdjustmentsToReconcileProfitLossAbstract" xlink:to="loc_bioMerieux_OtherNonRecurringIncomeExpensesExcludingNonRecurringProvisionsForImpairmentAndCapitalGainsAndLossesOnDisposalsOfFixedAssets" order="9" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherFinancialIncomeAndExpensesNetExcludingProvisionsAndDisposalsOfNonCurrentFinancialAssets" xlink:label="loc_bioMerieux_OtherFinancialIncomeAndExpensesNetExcludingProvisionsAndDisposalsOfNonCurrentFinancialAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherAdjustmentsToReconcileProfitLossAbstract" xlink:to="loc_bioMerieux_OtherFinancialIncomeAndExpensesNetExcludingProvisionsAndDisposalsOfNonCurrentFinancialAssets" order="10" />
    <link: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_AdjustmentsForProvisions" xlink:label="loc_ifrs-full_AdjustmentsForProvisions" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherAdjustmentsToReconcileProfitLossAbstract" xlink:to="loc_ifrs-full_AdjustmentsForProvisions" order="11" />
    <link: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_AdjustmentsForFairValueGainsLosses" xlink:label="loc_ifrs-full_AdjustmentsForFairValueGainsLosses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherAdjustmentsToReconcileProfitLossAbstract" xlink:to="loc_ifrs-full_AdjustmentsForFairValueGainsLosses" order="12" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherAdjustmentsToReconcileProfitLossAbstract" xlink:to="loc_ifrs-full_AdjustmentsForSharebasedPayments" order="13" />
    <link: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_OtherAdjustmentsToReconcileProfitLoss" xlink:label="loc_ifrs-full_OtherAdjustmentsToReconcileProfitLoss" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_OtherAdjustmentsToReconcileProfitLossAbstract" xlink:to="loc_ifrs-full_OtherAdjustmentsToReconcileProfitLoss" order="14" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="loc_bioMerieux_OtherAdjustmentsToReconcileProfitLossAbstract" order="15" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ChangeInOperatingWorkingCapitalRequirementAbstract" xlink:label="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirementAbstract" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirementAbstract" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" order="16" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" xlink:label="loc_bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirementAbstract" xlink:to="loc_bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" order="17" />
    <link: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_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirementAbstract" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" order="18" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ChangeInOtherOperatingWorkingCapital" xlink:label="loc_bioMerieux_ChangeInOtherOperatingWorkingCapital" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirementAbstract" xlink:to="loc_bioMerieux_ChangeInOtherOperatingWorkingCapital" order="19" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ChangeInOperatingWorkingCapitalRequirement" xlink:label="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirement" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirementAbstract" xlink:to="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirement" order="20" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_IncreaseDecreaseInWorkingCapitalAbstract" xlink:label="loc_bioMerieux_IncreaseDecreaseInWorkingCapitalAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_IncreaseDecreaseInWorkingCapitalAbstract" xlink:to="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirementAbstract" order="21" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherNonOperatingWorkingCapital" xlink:label="loc_bioMerieux_OtherNonOperatingWorkingCapital" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_IncreaseDecreaseInWorkingCapitalAbstract" xlink:to="loc_bioMerieux_OtherNonOperatingWorkingCapital" order="22" />
    <link: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_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_IncreaseDecreaseInWorkingCapitalAbstract" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables" order="23" />
    <link: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_IncreaseDecreaseInWorkingCapital" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_IncreaseDecreaseInWorkingCapitalAbstract" xlink:to="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" order="24" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="loc_bioMerieux_IncreaseDecreaseInWorkingCapitalAbstract" order="25" />
    <link: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_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" order="26" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_CostOfNetFinancialDebt" xlink:label="loc_bioMerieux_CostOfNetFinancialDebt" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="loc_bioMerieux_CostOfNetFinancialDebt" order="27" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" order="28" />
    <link: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_StatementOfCashFlowsAbstract" xlink:label="loc_ifrs-full_StatementOfCashFlowsAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" order="29" />
    <link: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_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" />
    <link: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_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" order="30" />
    <link: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_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:label="loc_ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="loc_ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" order="31" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" xlink:label="loc_bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="loc_bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" order="32" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_FreeCashFlow" xlink:label="loc_bioMerieux_FreeCashFlow" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="loc_bioMerieux_FreeCashFlow" order="33" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" xlink:label="loc_bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="loc_bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" order="34" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ImpactOfChangesInGroupStructure" xlink:label="loc_bioMerieux_ImpactOfChangesInGroupStructure" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="loc_bioMerieux_ImpactOfChangesInGroupStructure" order="35" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" order="36" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" order="37" />
    <link: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_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" />
    <link: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_PaymentsToAcquireOrRedeemEntitysShares" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" order="38" />
    <link: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_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" order="39" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" order="40" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" order="41" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" order="42" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" order="43" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChangesAbstract" xlink:label="loc_bioMerieux_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChangesAbstract" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChangesAbstract" xlink:to="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" order="44" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ChangesInCashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract" xlink:label="loc_bioMerieux_ChangesInCashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ChangesInCashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract" xlink:to="loc_bioMerieux_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChangesAbstract" order="45" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bioMerieux_ChangesInCashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract" xlink:to="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" order="46" />
    <link: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_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" xlink:label="loc_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="loc_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" order="47" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="loc_bioMerieux_ChangesInCashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract" order="48" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.biomerieux.com/content/registration-documents/role/Generalinformationaboutfinancialstatements">
    <link:loc xlink:type="locator" xlink:href="http://www.esma.europa.eu/taxonomy/2021-03-24/esef_cor.xsd#esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:label="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory" order="0" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" order="14" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities" order="15" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_LegalFormOfEntity" order="18" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_AddressOfRegisteredOfficeOfEntity" order="21" />
    <link: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_DisclosureOfAdditionalInformationExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAdditionalInformationExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfAdditionalInformationExplanatory" order="24" />
    <link: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_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" order="28" />
    <link: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_DescriptionOfPresentationCurrency" xlink:label="loc_ifrs-full_DescriptionOfPresentationCurrency" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfPresentationCurrency" order="30" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" order="33" />
    <link: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_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" order="35" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" order="39" />
    <link: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_StatementOfIFRSCompliance" xlink:label="loc_ifrs-full_StatementOfIFRSCompliance" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_StatementOfIFRSCompliance" order="43" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" order="69" />
    <link: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_DisclosureOfFirstTimeAdoptionExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFirstTimeAdoptionExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfFirstTimeAdoptionExplanatory" order="73" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" order="77" />
    <link: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_DisclosureOfReclassificationsOrChangesInPresentationExplanatory" xlink:label="loc_ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory" order="81" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" order="85" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" order="88" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfRevenueExplanatory" order="92" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" order="96" />
    <link: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_DisclosureOfCostOfSalesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCostOfSalesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfCostOfSalesExplanatory" order="99" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" order="102" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingExpenseExplanatory" order="105" />
    <link: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_DisclosureOfGeneralAndAdministrativeExpenseExplanatory" xlink:label="loc_ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory" order="108" />
    <link: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_DisclosureOfResearchAndDevelopmentExpenseExplanatory" xlink:label="loc_ifrs-full_DisclosureOfResearchAndDevelopmentExpenseExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfResearchAndDevelopmentExpenseExplanatory" order="111" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" order="114" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" order="123" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" order="131" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfGoodwillExplanatory" order="133" />
    <link: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_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory" order="137" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" order="144" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" order="146" />
    <link: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_DisclosureOfImpairmentOfAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" order="149" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" order="153" />
    <link: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_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" order="157" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" order="161" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" order="165" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfLeasesExplanatory" order="169" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" order="173" />
    <link: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_DisclosureOfOtherAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory" order="177" />
    <link: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_DisclosureOfOtherNoncurrentAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory" order="178" />
    <link: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_DisclosureOfFairValueMeasurementExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" order="181" />
    <link: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_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" order="183" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfInventoriesExplanatory" order="187" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" order="191" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" order="195" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory" order="198" />
    <link: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_DisclosureOfLoansAndAdvancesToCustomersExplanatory" xlink:label="loc_ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory" order="201" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfOtherCurrentAssetsExplanatory" order="204" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory" order="208" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" order="212" />
    <link: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_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory" order="216" />
    <link: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_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory" order="220" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory" order="224" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" order="229" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory" order="232" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory" order="235" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfTreasurySharesExplanatory" order="238" />
    <link: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_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" order="242" />
    <link: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_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" order="243" />
    <link: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_DisclosureOfNoncontrollingInterestsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory" order="246" />
    <link: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_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" order="248" />
    <link: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_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" order="252" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfProvisionsExplanatory" order="258" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" order="262" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory" order="268" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfContingentLiabilitiesExplanatory" order="269" />
    <link: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_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" order="274" />
    <link: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_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory" order="278" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" order="283" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" order="287" />
    <link: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_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" order="289" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" order="302" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfDebtSecuritiesExplanatory" order="305" />
    <link: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_DisclosureOfCashFlowStatementExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory" order="308" />
    <link: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_DisclosureOfInformationAboutLiquidityArrangementsGuaranteesOrOtherCommitmentsWithThirdPartiesThatMayAffectFairValueOrRiskOfInterestsInStructuredEntitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutLiquidityArrangementsGuaranteesOrOtherCommitmentsWithThirdPartiesThatMayAffectFairValueOrRiskOfInterestsInStructuredEntitiesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutLiquidityArrangementsGuaranteesOrOtherCommitmentsWithThirdPartiesThatMayAffectFairValueOrRiskOfInterestsInStructuredEntitiesExplanatory" order="310" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" order="313" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" order="317" />
    <link: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_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" order="319" />
    <link: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_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss" xlink:label="loc_ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss" order="321" />
    <link: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_AdditionalInformationAboutSharebasedPaymentArrangements" xlink:label="loc_ifrs-full_AdditionalInformationAboutSharebasedPaymentArrangements" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_AdditionalInformationAboutSharebasedPaymentArrangements" order="323" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory" order="327" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory" order="330" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" order="334" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" order="339" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory" order="346" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" order="353" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory" order="357" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory" order="360" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory" order="365" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" order="374" />
    <link: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_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" order="375" />
    <link: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_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" order="378" />
    <link: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_DisclosureOfReclassificationOfFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfReclassificationOfFinancialInstrumentsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfReclassificationOfFinancialInstrumentsExplanatory" order="381" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" order="384" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory" order="385" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory" order="390" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" order="393" />
    <link: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_DisclosureOfMarketRiskExplanatory" xlink:label="loc_ifrs-full_DisclosureOfMarketRiskExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfMarketRiskExplanatory" order="396" />
    <link: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_DisclosureOfCreditRiskExposureExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCreditRiskExposureExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfCreditRiskExposureExplanatory" order="398" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfLiquidityRiskExplanatory" order="401" />
    <link: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_SensitivityAnalysisForEachTypeOfMarketRisk" xlink:label="loc_ifrs-full_SensitivityAnalysisForEachTypeOfMarketRisk" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_SensitivityAnalysisForEachTypeOfMarketRisk" order="403" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsExplanatory" order="406" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory" order="412" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" order="415" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_NameOfParentEntity" order="418" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" order="421" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_NameOfUltimateParentOfGroup" order="424" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification" order="428" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_PrincipalPlaceOfBusiness" order="431" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_CountryOfIncorporation" order="434" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DomicileOfEntity" order="437" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosureofotheroperatingincome" xlink:label="loc_bioMerieux_Disclosureofotheroperatingincome" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_bioMerieux_Disclosureofotheroperatingincome" order="439" />
    <link: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_DisclosureOfExpensesByNatureExplanatory" xlink:label="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory" order="441" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Distributioncostsexplanatory" xlink:label="loc_bioMerieux_Distributioncostsexplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_bioMerieux_Distributioncostsexplanatory" order="442" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Operatingincomebeforenonrecurringitemsexplanatory" xlink:label="loc_bioMerieux_Operatingincomebeforenonrecurringitemsexplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_bioMerieux_Operatingincomebeforenonrecurringitemsexplanatory" order="443" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosuretradereceivablesandassetsrelatedtocontractswithcustomers" xlink:label="loc_bioMerieux_Disclosuretradereceivablesandassetsrelatedtocontractswithcustomers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_bioMerieux_Disclosuretradereceivablesandassetsrelatedtocontractswithcustomers" order="444" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosurecostofnetfinancialdebt" xlink:label="loc_bioMerieux_Disclosurecostofnetfinancialdebt" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_bioMerieux_Disclosurecostofnetfinancialdebt" order="445" />
    <link: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_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" order="446" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosureamortizationandimpairmentofacquisitionrelatedintangibleassetsandacquisitioncosts" xlink:label="loc_bioMerieux_Disclosureamortizationandimpairmentofacquisitionrelatedintangibleassetsandacquisitioncosts" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_bioMerieux_Disclosureamortizationandimpairmentofacquisitionrelatedintangibleassetsandacquisitioncosts" order="447" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosureothernonrecurringincomeexpenses" xlink:label="loc_bioMerieux_Disclosureothernonrecurringincomeexpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:to="loc_bioMerieux_Disclosureothernonrecurringincomeexpenses" order="448" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.esma.europa.eu/xbrl/role/cor/esef_role-999999">
    <link: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" />
    <link:loc xlink:type="locator" xlink:href="http://www.esma.europa.eu/taxonomy/2021-03-24/esef_cor.xsd#esef_cor_LineItemsNotDimensionallyQualified" xlink:label="loc_esef_cor_LineItemsNotDimensionallyQualified" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_esef_cor_LineItemsNotDimensionallyQualified" xbrldt:contextElement="scenario" xbrldt:closed="true" order="1" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CostOfSales" order="2" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_GrossProfit" order="3" />
    <link: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="loc_ifrs-full_DistributionCosts" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DistributionCosts" order="4" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_GeneralAndAdministrativeExpense" order="5" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ResearchAndDevelopmentExpense" order="6" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TotalOperatingExpenses" xlink:label="loc_bioMerieux_TotalOperatingExpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_TotalOperatingExpenses" order="7" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherOperatingIncomeAndExpenses" xlink:label="loc_bioMerieux_OtherOperatingIncomeAndExpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_OtherOperatingIncomeAndExpenses" order="8" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_AmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssetsAndAcquisitionCosts" xlink:label="loc_bioMerieux_AmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssetsAndAcquisitionCosts" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_AmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssetsAndAcquisitionCosts" order="9" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OperatingIncomeBeforeNonRecurringItems" xlink:label="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItems" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItems" order="10" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherNonRecurringIncomeExpenses" xlink:label="loc_bioMerieux_OtherNonRecurringIncomeExpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_OtherNonRecurringIncomeExpenses" order="11" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities" order="12" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_CostOfNetFinancialDebt" xlink:label="loc_bioMerieux_CostOfNetFinancialDebt" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_CostOfNetFinancialDebt" order="13" />
    <link: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_OtherFinanceIncomeCost" xlink:label="loc_ifrs-full_OtherFinanceIncomeCost" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherFinanceIncomeCost" order="14" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" order="15" />
    <link: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_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:label="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" order="16" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ProfitLoss" order="17" />
    <link: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_ProfitLossAttributableToNoncontrollingInterests" xlink:label="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ProfitLossAttributableToNoncontrollingInterests" order="18" />
    <link: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_ProfitLossAttributableToOwnersOfParent" xlink:label="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent" order="19" />
    <link: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_BasicEarningsLossPerShareFromContinuingOperations" xlink:label="loc_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" order="20" />
    <link: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_DilutedEarningsLossPerShareFromContinuingOperations" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" order="21" />
    <link: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_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" order="22" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHeddingInstruments" xlink:label="loc_bioMerieux_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHeddingInstruments" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHeddingInstruments" order="23" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" order="24" />
    <link: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_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" order="25" />
    <link: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_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" order="26" />
    <link: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_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments" order="27" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_IncomeTaxRelatingFairValueGainsLossesOnFinancialAssets" xlink:label="loc_bioMerieux_IncomeTaxRelatingFairValueGainsLossesOnFinancialAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_IncomeTaxRelatingFairValueGainsLossesOnFinancialAssets" order="28" />
    <link: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="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" order="29" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_IncomeTaxRelatingToRemeasurementOfEmployeeBenefits" xlink:label="loc_bioMerieux_IncomeTaxRelatingToRemeasurementOfEmployeeBenefits" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_IncomeTaxRelatingToRemeasurementOfEmployeeBenefits" order="30" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherComprehensiveIncome" order="31" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ComprehensiveIncome" order="32" />
    <link: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_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" order="33" />
    <link: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_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" order="34" />
    <link: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_Goodwill" xlink:label="loc_ifrs-full_Goodwill" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_Goodwill" order="35" />
    <link: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_IntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" order="36" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment" order="37" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_RightofuseAssets" order="38" />
    <link: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_NoncurrentFinancialAssets" xlink:label="loc_ifrs-full_NoncurrentFinancialAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NoncurrentFinancialAssets" order="39" />
    <link: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_InvestmentAccountedForUsingEquityMethod" xlink:label="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" order="40" />
    <link: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_NoncurrentFinanceLeaseReceivables" xlink:label="loc_ifrs-full_NoncurrentFinanceLeaseReceivables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NoncurrentFinanceLeaseReceivables" order="41" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DeferredTaxAssets" order="42" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NoncurrentAssets" order="43" />
    <link: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_InventoriesTotal" xlink:label="loc_ifrs-full_InventoriesTotal" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_InventoriesTotal" order="44" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" xlink:label="loc_bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" order="45" />
    <link: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_OtherCurrentReceivables" xlink:label="loc_ifrs-full_OtherCurrentReceivables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherCurrentReceivables" order="46" />
    <link: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_CurrentTaxAssets" xlink:label="loc_ifrs-full_CurrentTaxAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CurrentTaxAssets" order="47" />
    <link: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_OtherCurrentAssets" xlink:label="loc_ifrs-full_OtherCurrentAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherCurrentAssets" order="48" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CashAndCashEquivalents" order="49" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CurrentAssets" order="50" />
    <link: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_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:label="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" order="51" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_Assets" order="52" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_IssuedCapital" order="53" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TotalSharePremiumAndRetainedEarnings" xlink:label="loc_bioMerieux_TotalSharePremiumAndRetainedEarnings" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_TotalSharePremiumAndRetainedEarnings" order="54" />
    <link: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_RetainedEarningsProfitLossForReportingPeriod" xlink:label="loc_ifrs-full_RetainedEarningsProfitLossForReportingPeriod" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_RetainedEarningsProfitLossForReportingPeriod" order="55" />
    <link: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_EquityAttributableToOwnersOfParent" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParent" order="56" />
    <link: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_NoncontrollingInterests" xlink:label="loc_ifrs-full_NoncontrollingInterests" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NoncontrollingInterests" order="57" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_Equity" order="58" />
    <link: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_NoncurrentFinancialLiabilities" xlink:label="loc_ifrs-full_NoncurrentFinancialLiabilities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NoncurrentFinancialLiabilities" order="59" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DeferredTaxLiabilities" order="60" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NoncurrentProvisions" order="61" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NoncurrentLiabilities" order="62" />
    <link: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_CurrentFinancialLiabilities" xlink:label="loc_ifrs-full_CurrentFinancialLiabilities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CurrentFinancialLiabilities" order="63" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CurrentProvisions" order="64" />
    <link: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_TradeAndOtherPayablesToTradeSuppliers" xlink:label="loc_ifrs-full_TradeAndOtherPayablesToTradeSuppliers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_TradeAndOtherPayablesToTradeSuppliers" order="65" />
    <link: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_OtherCurrentPayables" xlink:label="loc_ifrs-full_OtherCurrentPayables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherCurrentPayables" order="66" />
    <link: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_CurrentTaxLiabilities" xlink:label="loc_ifrs-full_CurrentTaxLiabilities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CurrentTaxLiabilities" order="67" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_NonOperatingPayables" xlink:label="loc_bioMerieux_NonOperatingPayables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_NonOperatingPayables" order="68" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CurrentLiabilities" order="69" />
    <link: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_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:label="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" order="70" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_EquityAndLiabilities" order="71" />
    <link: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_AdjustmentsForUndistributedProfitsOfAssociates" xlink:label="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfAssociates" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfAssociates" order="72" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_CostOfNetFinancialDebtReintegratedCashFlow" xlink:label="loc_bioMerieux_CostOfNetFinancialDebtReintegratedCashFlow" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_CostOfNetFinancialDebtReintegratedCashFlow" order="73" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForFinanceIncomeCost" order="74" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForIncomeTaxExpense" order="75" />
    <link: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_AdjustmentsForDepreciationAndAmortisationExpense" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" order="76" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_NonRecurringIncomeAndExpenseAndAmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssets" xlink:label="loc_bioMerieux_NonRecurringIncomeAndExpenseAndAmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_NonRecurringIncomeAndExpenseAndAmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssets" order="77" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_EbitdaBeforeNonRecurringItems" xlink:label="loc_bioMerieux_EbitdaBeforeNonRecurringItems" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_EbitdaBeforeNonRecurringItems" order="78" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherNonRecurringIncomeExpensesExcludingNonRecurringProvisionsForImpairmentAndCapitalGainsAndLossesOnDisposalsOfFixedAssets" xlink:label="loc_bioMerieux_OtherNonRecurringIncomeExpensesExcludingNonRecurringProvisionsForImpairmentAndCapitalGainsAndLossesOnDisposalsOfFixedAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_OtherNonRecurringIncomeExpensesExcludingNonRecurringProvisionsForImpairmentAndCapitalGainsAndLossesOnDisposalsOfFixedAssets" order="79" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherFinancialIncomeAndExpensesNetExcludingProvisionsAndDisposalsOfNonCurrentFinancialAssets" xlink:label="loc_bioMerieux_OtherFinancialIncomeAndExpensesNetExcludingProvisionsAndDisposalsOfNonCurrentFinancialAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_OtherFinancialIncomeAndExpensesNetExcludingProvisionsAndDisposalsOfNonCurrentFinancialAssets" order="80" />
    <link: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_AdjustmentsForProvisions" xlink:label="loc_ifrs-full_AdjustmentsForProvisions" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForProvisions" order="81" />
    <link: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_AdjustmentsForFairValueGainsLosses" xlink:label="loc_ifrs-full_AdjustmentsForFairValueGainsLosses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForFairValueGainsLosses" order="82" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForSharebasedPayments" order="83" />
    <link: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_OtherAdjustmentsToReconcileProfitLoss" xlink:label="loc_ifrs-full_OtherAdjustmentsToReconcileProfitLoss" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_OtherAdjustmentsToReconcileProfitLoss" order="84" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" order="85" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" xlink:label="loc_bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" order="86" />
    <link: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_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAccountPayable" order="87" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ChangeInOtherOperatingWorkingCapital" xlink:label="loc_bioMerieux_ChangeInOtherOperatingWorkingCapital" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_ChangeInOtherOperatingWorkingCapital" order="88" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ChangeInOperatingWorkingCapitalRequirement" xlink:label="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirement" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirement" order="89" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherNonOperatingWorkingCapital" xlink:label="loc_bioMerieux_OtherNonOperatingWorkingCapital" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_OtherNonOperatingWorkingCapital" order="90" />
    <link: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_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables" order="91" />
    <link: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_IncreaseDecreaseInWorkingCapital" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" order="92" />
    <link: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_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" order="93" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" order="94" />
    <link: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_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" order="95" />
    <link: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_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:label="loc_ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" order="96" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" xlink:label="loc_bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" order="97" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" xlink:label="loc_bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" order="98" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ImpactOfChangesInGroupStructure" xlink:label="loc_bioMerieux_ImpactOfChangesInGroupStructure" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_ImpactOfChangesInGroupStructure" order="99" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" order="100" />
    <link: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_PaymentsToAcquireOrRedeemEntitysShares" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" order="101" />
    <link: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_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" order="102" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" order="103" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" order="104" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" order="105" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" order="106" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" order="107" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_FreeCashFlow" xlink:label="loc_bioMerieux_FreeCashFlow" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_FreeCashFlow" order="108" />
    <link: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_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" xlink:label="loc_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" order="109" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory" order="110" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" order="111" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities" order="112" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_LegalFormOfEntity" order="113" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AddressOfRegisteredOfficeOfEntity" order="114" />
    <link: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_DisclosureOfAdditionalInformationExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAdditionalInformationExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfAdditionalInformationExplanatory" order="115" />
    <link: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_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfAuthorisationOfFinancialStatementsExplanatory" order="116" />
    <link: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_DescriptionOfPresentationCurrency" xlink:label="loc_ifrs-full_DescriptionOfPresentationCurrency" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfPresentationCurrency" order="117" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" order="118" />
    <link: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_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" order="119" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" order="120" />
    <link: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_StatementOfIFRSCompliance" xlink:label="loc_ifrs-full_StatementOfIFRSCompliance" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_StatementOfIFRSCompliance" order="121" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" order="122" />
    <link: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_DisclosureOfFirstTimeAdoptionExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFirstTimeAdoptionExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfFirstTimeAdoptionExplanatory" order="123" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" order="124" />
    <link: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_DisclosureOfReclassificationsOrChangesInPresentationExplanatory" xlink:label="loc_ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationExplanatory" order="125" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" order="126" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" order="127" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfRevenueExplanatory" order="128" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" order="129" />
    <link: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_DisclosureOfCostOfSalesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCostOfSalesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfCostOfSalesExplanatory" order="130" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExpenseExplanatory" order="131" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingExpenseExplanatory" order="132" />
    <link: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_DisclosureOfGeneralAndAdministrativeExpenseExplanatory" xlink:label="loc_ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfGeneralAndAdministrativeExpenseExplanatory" order="133" />
    <link: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_DisclosureOfResearchAndDevelopmentExpenseExplanatory" xlink:label="loc_ifrs-full_DisclosureOfResearchAndDevelopmentExpenseExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfResearchAndDevelopmentExpenseExplanatory" order="134" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" order="135" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" order="136" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" order="137" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfGoodwillExplanatory" order="138" />
    <link: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_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory" order="139" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" order="140" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" order="141" />
    <link: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_DisclosureOfImpairmentOfAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" order="142" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" order="143" />
    <link: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_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" order="144" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" order="145" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" order="146" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfLeasesExplanatory" order="147" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" order="148" />
    <link: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_DisclosureOfOtherAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory" order="149" />
    <link: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_DisclosureOfOtherNoncurrentAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfOtherNoncurrentAssetsExplanatory" order="150" />
    <link: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_DisclosureOfFairValueMeasurementExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" order="151" />
    <link: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_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" order="152" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfInventoriesExplanatory" order="153" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" order="154" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" order="155" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory" order="156" />
    <link: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_DisclosureOfLoansAndAdvancesToCustomersExplanatory" xlink:label="loc_ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfLoansAndAdvancesToCustomersExplanatory" order="157" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfOtherCurrentAssetsExplanatory" order="158" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory" order="159" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" order="160" />
    <link: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_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory" order="161" />
    <link: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_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory" order="162" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfEarningsPerShareExplanatory" order="163" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" order="164" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory" order="165" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory" order="166" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfTreasurySharesExplanatory" order="167" />
    <link: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_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" order="168" />
    <link: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_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" order="169" />
    <link: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_DisclosureOfNoncontrollingInterestsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfNoncontrollingInterestsExplanatory" order="170" />
    <link: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_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" order="171" />
    <link: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_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" order="172" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfProvisionsExplanatory" order="173" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" order="174" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory" order="175" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfContingentLiabilitiesExplanatory" order="176" />
    <link: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_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory" order="177" />
    <link: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_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory" order="178" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" order="179" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" order="180" />
    <link: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_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" order="181" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" order="182" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfDebtSecuritiesExplanatory" order="183" />
    <link: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_DisclosureOfCashFlowStatementExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory" order="184" />
    <link: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_DisclosureOfInformationAboutLiquidityArrangementsGuaranteesOrOtherCommitmentsWithThirdPartiesThatMayAffectFairValueOrRiskOfInterestsInStructuredEntitiesExplanatory" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutLiquidityArrangementsGuaranteesOrOtherCommitmentsWithThirdPartiesThatMayAffectFairValueOrRiskOfInterestsInStructuredEntitiesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutLiquidityArrangementsGuaranteesOrOtherCommitmentsWithThirdPartiesThatMayAffectFairValueOrRiskOfInterestsInStructuredEntitiesExplanatory" order="185" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" order="186" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" order="187" />
    <link: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_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" order="188" />
    <link: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_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss" xlink:label="loc_ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss" order="189" />
    <link: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_AdditionalInformationAboutSharebasedPaymentArrangements" xlink:label="loc_ifrs-full_AdditionalInformationAboutSharebasedPaymentArrangements" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_AdditionalInformationAboutSharebasedPaymentArrangements" order="190" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutEmployeesExplanatory" order="191" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory" order="192" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" order="193" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory" order="194" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfIncomeTaxExplanatory" order="195" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" order="196" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory" order="197" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory" order="198" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory" order="199" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" order="200" />
    <link: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_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" order="201" />
    <link: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_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" order="202" />
    <link: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_DisclosureOfReclassificationOfFinancialInstrumentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfReclassificationOfFinancialInstrumentsExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfReclassificationOfFinancialInstrumentsExplanatory" order="203" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" order="204" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory" order="205" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory" order="206" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" order="207" />
    <link: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_DisclosureOfMarketRiskExplanatory" xlink:label="loc_ifrs-full_DisclosureOfMarketRiskExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfMarketRiskExplanatory" order="208" />
    <link: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_DisclosureOfCreditRiskExposureExplanatory" xlink:label="loc_ifrs-full_DisclosureOfCreditRiskExposureExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfCreditRiskExposureExplanatory" order="209" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfLiquidityRiskExplanatory" order="210" />
    <link: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_SensitivityAnalysisForEachTypeOfMarketRisk" xlink:label="loc_ifrs-full_SensitivityAnalysisForEachTypeOfMarketRisk" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_SensitivityAnalysisForEachTypeOfMarketRisk" order="211" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfCommitmentsExplanatory" order="212" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory" order="213" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" order="214" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NameOfParentEntity" order="215" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" order="216" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NameOfUltimateParentOfGroup" order="217" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification" order="218" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_PrincipalPlaceOfBusiness" order="219" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_CountryOfIncorporation" order="220" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DomicileOfEntity" order="221" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosureofotheroperatingincome" xlink:label="loc_bioMerieux_Disclosureofotheroperatingincome" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_Disclosureofotheroperatingincome" order="222" />
    <link: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_DisclosureOfExpensesByNatureExplanatory" xlink:label="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory" order="223" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Distributioncostsexplanatory" xlink:label="loc_bioMerieux_Distributioncostsexplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_Distributioncostsexplanatory" order="224" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Operatingincomebeforenonrecurringitemsexplanatory" xlink:label="loc_bioMerieux_Operatingincomebeforenonrecurringitemsexplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_Operatingincomebeforenonrecurringitemsexplanatory" order="225" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosuretradereceivablesandassetsrelatedtocontractswithcustomers" xlink:label="loc_bioMerieux_Disclosuretradereceivablesandassetsrelatedtocontractswithcustomers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_Disclosuretradereceivablesandassetsrelatedtocontractswithcustomers" order="226" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosurecostofnetfinancialdebt" xlink:label="loc_bioMerieux_Disclosurecostofnetfinancialdebt" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_Disclosurecostofnetfinancialdebt" order="227" />
    <link: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_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" order="228" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosureamortizationandimpairmentofacquisitionrelatedintangibleassetsandacquisitioncosts" xlink:label="loc_bioMerieux_Disclosureamortizationandimpairmentofacquisitionrelatedintangibleassetsandacquisitioncosts" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_Disclosureamortizationandimpairmentofacquisitionrelatedintangibleassetsandacquisitioncosts" order="229" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosureothernonrecurringincomeexpenses" xlink:label="loc_bioMerieux_Disclosureothernonrecurringincomeexpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_Revenue" xlink:to="loc_bioMerieux_Disclosureothernonrecurringincomeexpenses" order="230" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.biomerieux.com/content/registration-documents/role/Anchoring">
    <link: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" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherOperatingIncomeAndExpenses" xlink:label="loc_bioMerieux_OtherOperatingIncomeAndExpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_bioMerieux_OtherOperatingIncomeAndExpenses" order="1" />
    <link: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_OtherIncome" xlink:label="loc_ifrs-full_OtherIncome" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_OtherOperatingIncomeAndExpenses" xlink:to="loc_ifrs-full_OtherIncome" order="2" />
    <link: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_OtherExpenseByFunction" xlink:label="loc_ifrs-full_OtherExpenseByFunction" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_OtherOperatingIncomeAndExpenses" xlink:to="loc_ifrs-full_OtherExpenseByFunction" order="3" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TotalOperatingExpenses" xlink:label="loc_bioMerieux_TotalOperatingExpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_bioMerieux_TotalOperatingExpenses" order="4" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_AmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssetsAndAcquisitionCosts" xlink:label="loc_bioMerieux_AmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssetsAndAcquisitionCosts" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherExpenseByFunction" xlink:to="loc_bioMerieux_AmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssetsAndAcquisitionCosts" order="5" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OperatingIncomeBeforeNonRecurringItems" xlink:label="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItems" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_bioMerieux_OperatingIncomeBeforeNonRecurringItems" order="6" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherNonRecurringIncomeExpenses" xlink:label="loc_bioMerieux_OtherNonRecurringIncomeExpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_ProfitLossFromOperatingActivities" xlink:to="loc_bioMerieux_OtherNonRecurringIncomeExpenses" order="7" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_OtherNonRecurringIncomeExpenses" xlink:to="loc_ifrs-full_OtherExpenseByFunction" order="8" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_OtherNonRecurringIncomeExpenses" xlink:to="loc_ifrs-full_OtherIncome" order="9" />
    <link: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" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_CostOfNetFinancialDebt" xlink:label="loc_bioMerieux_CostOfNetFinancialDebt" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_FinanceCosts" xlink:to="loc_bioMerieux_CostOfNetFinancialDebt" order="10" />
    <link: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_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHeddingInstruments" xlink:label="loc_bioMerieux_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHeddingInstruments" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:to="loc_bioMerieux_OtherComprehensiveIncomeBeforeTaxGainsLossesOnHeddingInstruments" order="11" />
    <link: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_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_IncomeTaxRelatingFairValueGainsLossesOnFinancialAssets" xlink:label="loc_bioMerieux_IncomeTaxRelatingFairValueGainsLossesOnFinancialAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:to="loc_bioMerieux_IncomeTaxRelatingFairValueGainsLossesOnFinancialAssets" order="12" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_IncomeTaxRelatingToRemeasurementOfEmployeeBenefits" xlink:label="loc_bioMerieux_IncomeTaxRelatingToRemeasurementOfEmployeeBenefits" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:to="loc_bioMerieux_IncomeTaxRelatingToRemeasurementOfEmployeeBenefits" order="13" />
    <link: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_TradeAndOtherCurrentReceivables" xlink:label="loc_ifrs-full_TradeAndOtherCurrentReceivables" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" xlink:label="loc_bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="loc_bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" order="14" />
    <link: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_TradeReceivables" xlink:label="loc_ifrs-full_TradeReceivables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" xlink:to="loc_ifrs-full_TradeReceivables" order="15" />
    <link: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_CurrentFinanceLeaseReceivables" xlink:label="loc_ifrs-full_CurrentFinanceLeaseReceivables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_TradeReceivablesAndAssetsRelatedToContractsWithCustomers" xlink:to="loc_ifrs-full_CurrentFinanceLeaseReceivables" order="16" />
    <link: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_EquityAttributableToOwnersOfParent" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParent" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_TotalSharePremiumAndRetainedEarnings" xlink:label="loc_bioMerieux_TotalSharePremiumAndRetainedEarnings" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParent" xlink:to="loc_bioMerieux_TotalSharePremiumAndRetainedEarnings" order="17" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_TotalSharePremiumAndRetainedEarnings" xlink:to="loc_ifrs-full_SharePremium" order="18" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_TotalSharePremiumAndRetainedEarnings" xlink:to="loc_ifrs-full_RetainedEarnings" order="19" />
    <link: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_OtherPayables" xlink:label="loc_ifrs-full_OtherPayables" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_NonOperatingPayables" xlink:label="loc_bioMerieux_NonOperatingPayables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherPayables" xlink:to="loc_bioMerieux_NonOperatingPayables" order="20" />
    <link: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_CurrentPayablesForPurchaseOfNoncurrentAssets" xlink:label="loc_ifrs-full_CurrentPayablesForPurchaseOfNoncurrentAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_NonOperatingPayables" xlink:to="loc_ifrs-full_CurrentPayablesForPurchaseOfNoncurrentAssets" order="21" />
    <link: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_OtherCurrentFinancialLiabilities" xlink:label="loc_ifrs-full_OtherCurrentFinancialLiabilities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_NonOperatingPayables" xlink:to="loc_ifrs-full_OtherCurrentFinancialLiabilities" order="22" />
    <link: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_OtherNoncurrentFinancialLiabilities" xlink:label="loc_ifrs-full_OtherNoncurrentFinancialLiabilities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_NonOperatingPayables" xlink:to="loc_ifrs-full_OtherNoncurrentFinancialLiabilities" order="23" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_NonOperatingPayables" xlink:to="loc_ifrs-full_CurrentDerivativeFinancialLiabilities" order="24" />
    <link: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="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ShareBasedPayments" xlink:label="loc_bioMerieux_ShareBasedPayments" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:to="loc_bioMerieux_ShareBasedPayments" order="25" />
    <link: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_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" xlink:label="loc_ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_NumberOfTreasuryShares" xlink:label="loc_bioMerieux_NumberOfTreasuryShares" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates" xlink:to="loc_bioMerieux_NumberOfTreasuryShares" order="26" />
    <link: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_AdjustmentsForFinanceCosts" xlink:label="loc_ifrs-full_AdjustmentsForFinanceCosts" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_CostOfNetFinancialDebtReintegratedCashFlow" xlink:label="loc_bioMerieux_CostOfNetFinancialDebtReintegratedCashFlow" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AdjustmentsForFinanceCosts" xlink:to="loc_bioMerieux_CostOfNetFinancialDebtReintegratedCashFlow" order="27" />
    <link: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="loc_ifrs-full_OtherAdjustmentsForNoncashItems" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_NonRecurringIncomeAndExpenseAndAmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssets" xlink:label="loc_bioMerieux_NonRecurringIncomeAndExpenseAndAmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherAdjustmentsForNoncashItems" xlink:to="loc_bioMerieux_NonRecurringIncomeAndExpenseAndAmortizationAndImpairmentOfAcquisitionRelatedIntangibleAssets" order="28" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherNonRecurringIncomeExpensesExcludingNonRecurringProvisionsForImpairmentAndCapitalGainsAndLossesOnDisposalsOfFixedAssets" xlink:label="loc_bioMerieux_OtherNonRecurringIncomeExpensesExcludingNonRecurringProvisionsForImpairmentAndCapitalGainsAndLossesOnDisposalsOfFixedAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_OtherAdjustmentsForNoncashItems" xlink:to="loc_bioMerieux_OtherNonRecurringIncomeExpensesExcludingNonRecurringProvisionsForImpairmentAndCapitalGainsAndLossesOnDisposalsOfFixedAssets" order="29" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherFinancialIncomeAndExpensesNetExcludingProvisionsAndDisposalsOfNonCurrentFinancialAssets" xlink:label="loc_bioMerieux_OtherFinancialIncomeAndExpensesNetExcludingProvisionsAndDisposalsOfNonCurrentFinancialAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_AdjustmentsForFinanceCosts" xlink:to="loc_bioMerieux_OtherFinancialIncomeAndExpensesNetExcludingProvisionsAndDisposalsOfNonCurrentFinancialAssets" order="30" />
    <link: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_IncreaseDecreaseInWorkingCapital" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" xlink:label="loc_bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" order="31" />
    <link: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_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_AdjustementsForDecreaseIncreaseInTradeReceivablesAndAssetsRelatedToContractsWithCustomers" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" order="32" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ChangeInOtherOperatingWorkingCapital" xlink:label="loc_bioMerieux_ChangeInOtherOperatingWorkingCapital" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_bioMerieux_ChangeInOtherOperatingWorkingCapital" order="33" />
    <link: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_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_ChangeInOtherOperatingWorkingCapital" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables" order="34" />
    <link: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_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_ChangeInOtherOperatingWorkingCapital" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherOperatingPayables" order="35" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ChangeInOperatingWorkingCapitalRequirement" xlink:label="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirement" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_bioMerieux_ChangeInOperatingWorkingCapitalRequirement" order="36" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_OtherNonOperatingWorkingCapital" xlink:label="loc_bioMerieux_OtherNonOperatingWorkingCapital" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="loc_bioMerieux_OtherNonOperatingWorkingCapital" order="37" />
    <link: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_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_OtherNonOperatingWorkingCapital" xlink:to="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssets" order="38" />
    <link: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_AdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_OtherNonOperatingWorkingCapital" xlink:to="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities" order="39" />
    <link: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" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" xlink:label="loc_bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" order="40" />
    <link: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_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" xlink:to="loc_ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" order="41" />
    <link: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_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_PurchaseOrProceedsFromSalesOfOtherLongTermAssets" xlink:to="loc_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" order="42" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_FreeCashFlow" xlink:label="loc_bioMerieux_FreeCashFlow" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_bioMerieux_FreeCashFlow" order="43" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" xlink:label="loc_bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" order="44" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" xlink:to="loc_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" order="45" />
    <link: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_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:label="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_DisbursmentRelatingToTakingNonControllingInterests" xlink:to="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" order="46" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_ImpactOfChangesInGroupStructure" xlink:label="loc_bioMerieux_ImpactOfChangesInGroupStructure" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="loc_bioMerieux_ImpactOfChangesInGroupStructure" order="47" />
    <link: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="loc_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_ImpactOfChangesInGroupStructure" xlink:to="loc_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" order="48" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_ImpactOfChangesInGroupStructure" xlink:to="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" order="49" />
    <link: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" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Operatingincomebeforenonrecurringitemsexplanatory" xlink:label="loc_bioMerieux_Operatingincomebeforenonrecurringitemsexplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" xlink:to="loc_bioMerieux_Operatingincomebeforenonrecurringitemsexplanatory" order="50" />
    <link: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" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosuretradereceivablesandassetsrelatedtocontractswithcustomers" xlink:label="loc_bioMerieux_Disclosuretradereceivablesandassetsrelatedtocontractswithcustomers" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:to="loc_bioMerieux_Disclosuretradereceivablesandassetsrelatedtocontractswithcustomers" order="51" />
    <link: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" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosurecostofnetfinancialdebt" xlink:label="loc_bioMerieux_Disclosurecostofnetfinancialdebt" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:to="loc_bioMerieux_Disclosurecostofnetfinancialdebt" order="52" />
    <link: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_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" xlink:label="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosureamortizationandimpairmentofacquisitionrelatedintangibleassetsandacquisitioncosts" xlink:label="loc_bioMerieux_Disclosureamortizationandimpairmentofacquisitionrelatedintangibleassetsandacquisitioncosts" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionExplanatory" xlink:to="loc_bioMerieux_Disclosureamortizationandimpairmentofacquisitionrelatedintangibleassetsandacquisitioncosts" order="53" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosureothernonrecurringincomeexpenses" xlink:label="loc_bioMerieux_Disclosureothernonrecurringincomeexpenses" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" xlink:to="loc_bioMerieux_Disclosureothernonrecurringincomeexpenses" order="54" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Disclosureofotheroperatingincome" xlink:label="loc_bioMerieux_Disclosureofotheroperatingincome" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory" xlink:to="loc_bioMerieux_Disclosureofotheroperatingincome" order="55" />
    <link: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" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_bioMerieux_Disclosureofotheroperatingincome" xlink:to="loc_ifrs-full_DisclosureOfOtherOperatingIncomeExplanatory" order="56" />
    <link: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_DisclosureOfExpensesByNatureExplanatory" xlink:label="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory" />
    <link:loc xlink:type="locator" xlink:href="549300AK8Y0LBIQ4T071-2022-12-31.xsd#bioMerieux_Distributioncostsexplanatory" xlink:label="loc_bioMerieux_Distributioncostsexplanatory" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:from="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory" xlink:to="loc_bioMerieux_Distributioncostsexplanatory" order="57" />
  </link:definitionLink>
</link:linkbase>