La·marck·ism (lə-märkĭzəm) also La·marck·i·an·ism (-kē-ə-nĭzəm)
n.
A theory of biological evolution holding that species evolve by the inheritance of traits acquired or modified through the use or disuse of body parts.

[TahlilGaran] American Dictionary ▲

lamarckism
[After LamarckChevalier de, Jean Baptiste Pierre Antoine de Monet.]

[TahlilGaran] American Dictionary ▲