[ luh-mahrk; French la-mark ]

  1. Jean Bap·tiste Pierre An·toine de Mo·net de [zhahnba-teestpyerahn-twanduhmaw-neduh], /ʒɑ̃ baˈtist pyɛr ɑ̃ˈtwan də mɔˈnɛ də/, 1744–1829, French naturalist: pioneer in the field of comparative anatomy.

Words Nearby Lamarck Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Lamarck in a sentence

British Dictionary definitions for Lamarck


/ (French lamark) /

  1. Jean Baptiste Pierre Antoine de Monet (ʒɑ̃ batist pjɛr ɑ̃twan də mɔnɛ), Chevalier de Lamarck. 1744–1829, French naturalist. He outlined his theory of organic evolution (Lamarckism) in Philosophie Zoologique (1809)

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

Scientific definitions for Lamarck


[ lə-märk, lä- ]

  1. French naturalist who introduced the taxonomic distinction between vertebrates and invertebrates. His theory that the acquired characteristics of a species could be inherited by later generations was a forerunner to Charles Darwin's theory of evolution, although it was eventually discredited.

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