mac·​ro·​evo·​lu·​tion | \ ˈma-krō-ˌe-və-ˈlü-shən How to pronounce macroevolution (audio) also -ˌē-və- \

Definition of macroevolution

: evolution that results in relatively large and complex changes (as in species formation)

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Other Words from macroevolution

macroevolutionary \ ˈma-​krō-​ˌe-​və-​ˈlü-​shə-​ˌner-​ē How to pronounce macroevolutionary (audio) also  -​ˌē-​və-​ \ adjective

Examples of macroevolution in a Sentence

Recent Examples on the Web These facts are every bit as solid and universally attested as climate change or macroevolution. Samuel James, National Review, "There Is No ‘Party of Science’," 14 Feb. 2020 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, "How Dinosaurs Shrank and Became Birds," 2 June 2015

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

First Known Use of macroevolution

1937, in the meaning defined above

History and Etymology for macroevolution

macro- + evolution, probably after French macroévolution

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Learn More about macroevolution

Time Traveler for macroevolution

Time Traveler

The first known use of macroevolution was in 1937

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Statistics for macroevolution

Cite this Entry

“Macroevolution.” Dictionary, Merriam-Webster, Accessed 20 Sep. 2020.

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