Lamarckism

[luh-mahr-kiz-uh m]
noun
  1. the Lamarckian theory that characteristics acquired by habit, use, or disuse may be passed on to future generations through inheritance.

Origin of Lamarckism

First recorded in 1880–85; Lamarck + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for lamarckism

Lamarckism

noun
  1. the theory of organic evolution proposed by Lamarck, based on the principle that characteristics of an organism modified during its lifetime are inheritableSee also acquired characteristic, Neo-Lamarckism
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012