microevolution

noun
mi·​cro·​evo·​lu·​tion | \-ˌe-və-ˈlü-shən also -ˌē-və- \

Definition of microevolution 

: comparatively minor evolutionary change involving the accumulation of variations in populations usually below the species level

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Other Words from microevolution

microevolutionary \-​shə-​ˌner-​ē \ adjective

Examples of microevolution in a Sentence

Recent Examples on the Web

To get samples from other species, Dr. Carlton has enlisted the aid of a Fordham University biologist, Jason Munshi-South, who studies the travel patterns and microevolution of rodents in the city. Andy Newman, New York Times, "Dogs Do Their Duty for Science," 7 Apr. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'microevolution.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of microevolution

1911, in the meaning defined above

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The first known use of microevolution was in 1911

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More Definitions for microevolution

microevolution

noun
mi·​cro·​evo·​lu·​tion | \ˈmī-krō-ˌev-ə-ˈlü-shən also -ˌē-və-\

Medical Definition of microevolution 

: comparatively minor evolutionary change involving the accumulation of variations in populations usually below the species level

Other Words from microevolution

microevolutionary \-​shə-​ˌner-​ē \ adjective

More from Merriam-Webster on microevolution

Britannica.com: Encyclopedia article about microevolution

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