from
The Collaborative International Dictionary of English v.0.48
Neo-Lamarckism \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).
Note: This theory has been thoroughly discredited, though it
had some support for a time in the Soviet Union due to
the influence of the biologist Lysenko.--
{Ne`o-La*marck"i*an}, a. & n.
[Webster 1913 Suppl.]