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.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.