Darwinism

noun

Dar·​win·​ism ˈdär-wə-ˌni-zəm How to pronounce Darwinism (audio)
1
: a theory of the origin and perpetuation of new species of animals and plants that offspring of a given organism vary, that natural selection favors the survival of some of these variations over others, that new species have arisen and may continue to arise by these processes, and that widely divergent groups of plants and animals have arisen from the same ancestors compare evolution sense 1, neo-Darwinism
2
: a theory that inherent dynamic forces allow only the fittest persons or organizations to prosper in a competitive environment or situation
economic Darwinism
compare social darwinism
Darwinist noun or adjective

Word History

First Known Use

1860, in the meaning defined at sense 1

Time Traveler
The first known use of Darwinism was in 1860

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Cite this Entry

“Darwinism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Darwinism. Accessed 9 Sep. 2025.

Kids Definition

Darwinism

noun
Dar·​win·​ism ˈdär-wə-ˌniz-əm How to pronounce Darwinism (audio)
: a theory explaining the origin and continued existence of new kinds of animals and plants by means of natural selection acting on chance variations

Medical Definition

Darwinism

noun
Dar·​win·​ism ˈdär-wə-ˌniz-əm How to pronounce Darwinism (audio)
: a theory of the origin and perpetuation of new species of animals and plants that offspring of a given organism vary, that natural selection favors the survival of some of these variations over others, that new species have arisen and may continue to arise by these processes, and that widely divergent groups of plants and animals have arisen from the same ancestors
broadly : a theory of biological evolution
Darwinist noun or adjective

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