[luh-mahr-kiz-uh m] /ləˈmɑr kɪz əm/

the Lamarckian theory that characteristics acquired by habit, use, or disuse may be passed on to future generations through inheritance.
the theory of organic evolution proposed by Lamarck, based on the principle that characteristics of an organism modified during its lifetime are inheritable See also acquired characteristic, Neo-Lamarckism


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