microevolution

noun
mi·​cro·​evo·​lu·​tion | \ ˌmī-krō-ˌe-və-ˈlü-shən How to pronounce microevolution (audio) also -ˌē-və- \

Definition of microevolution

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

Other Words from microevolution

microevolutionary \ ˌmī-​krō-​ˌe-​və-​ˈlü-​shə-​ˌner-​ē How to pronounce microevolution (audio) also  -​ˌē-​və-​ \ adjective

Examples of microevolution in a Sentence

Recent Examples on the Web New Paranthropus robustus fossils from South Africa show microevolution within a single species. Briana Pobiner And Ryan Mcrae, Smithsonian Magazine, 28 Dec. 2021 The differences between fossils at the two sites highlight microevolution within this Paranthropus lineage. Briana Pobiner And Ryan Mcrae, Smithsonian Magazine, 28 Dec. 2021 This find is the first evidence of microevolution—the changes within a population of one species over time—in early hominids, reports the Australian Associated Press. Rasha Aridi, Smithsonian Magazine, 13 Nov. 2020 Some of these teachers might even introduce evolutionary ideas such as natural selection and microevolution. Olga Khazan, The Atlantic, 19 Sep. 2019 Rather, Abzhanov showed that the same forces that shape microevolution — minor alterations within species — also drive macroevolution, the evolution of whole new features and new groups of species. Quanta Magazine, 2 June 2015 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, 7 Apr. 2017 See More

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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Time Traveler for microevolution

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The first known use of microevolution was in 1911

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Dictionary Entries Near microevolution

microergate

microevolution

microexamination

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Cite this Entry

“Microevolution.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microevolution. Accessed 24 Sep. 2022.

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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 How to pronounce microevolution (audio) \ adjective

More from Merriam-Webster on microevolution

Britannica.com: Encyclopedia article about microevolution

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