Lamarckism

noun La·marck·ism \lə-ˈmär-ˌki-zəm\

Definition of LAMARCKISM

: a theory of organic evolution asserting that environmental changes cause structural changes in animals and plants that are transmitted to offspring

— La·marck·ian \-kē-ən\ adjective

See Lamarckism defined for kids

J.-B. de Monet de Lamarck

First Known Use: 1884

Medical Dictionary

noun La·marck·ism \lə-ˈmär-ˌkiz-əm\

: a theory of organic evolution asserting that environmental changes cause structural changes in animals and plants that are transmitted to offspring

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