\Ne`o-La*marck"ism\, n. (Biol.)
Lamarckism as revived, modified, and expounded by recent
biologists, esp. as maintaining that the offspring inherits
characters acquired by the parent from change of environment,
use or disuse of parts, etc.; -- opposed of {Neo-Darwinism}
(which see, above). -- {Ne`o-La*marck"i*an}, a. & n.