Definition of: Neo-Darwinism

(nē′ō·där′win·iz′əm) noun Biol.
Darwinism as modified and extended by more recent students, who accept the theory of natural selection as sufficient to account for evolution, and deny, as in the case of Weismann especially, the inheritance of acquired characters. See NEO-LAMARCKISM, WEISMANNISM.
—Ne′o-Dar·win′i·an (-där·win′ē·ən) adjective & noun
—Ne′o-Dar′win·ist noun