Lamarckism

noun

La·​marck·​ism lə-ˈmär-ˌki-zəm How to pronounce Lamarckism (audio)
: a theory of organic evolution asserting that environmental changes cause structural changes in animals and plants that are transmitted to offspring
Lamarckian adjective

Word History

Etymology

J.-B. de Monet de Lamarck

First Known Use

1884, in the meaning defined above

Time Traveler
The first known use of Lamarckism was in 1884

Dictionary Entries Near Lamarckism

Cite this Entry

“Lamarckism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Lamarckism. Accessed 1 Dec. 2022.

Kids Definition

Lamarckism

noun

La·​marck·​ism lə-ˈmär-ˌkiz-əm How to pronounce Lamarckism (audio)
: a theory of evolution holding that changes in the environment cause changes in the structure of animals and plants that are passed on to offspring
Lamarckian
-kē-ən
adjective

Medical Definition

Lamarckism

noun

La·​marck·​ism lə-ˈmär-ˌkiz-əm How to pronounce Lamarckism (audio)
: a theory of organic evolution asserting that environmental changes cause structural changes in animals and plants that are transmitted to offspring
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