macroevolution

noun

mac·​ro·​evo·​lu·​tion ˈma-krō-ˌe-və-ˈlü-shən How to pronounce macroevolution (audio)
 also  -ˌē-və-
: evolution that results in relatively large and complex changes (as in species formation)
macroevolutionary
ˈma-krō-ˌe-və-ˈlü-shə-ˌner-ē How to pronounce macroevolution (audio)
 also  -ˌē-və-
adjective

Examples of macroevolution in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
New dinosaur discovery may be the closest relative to Tyrannosaurus rex, scientists say The findings will also help researchers enhance the understanding of macroevolution and how species adapted to specific environments over time, according to the paper. — Julia Jacobo, ABC News, 18 Feb. 2025 Jon Tennant is currently undertaking a PhD in vertebrate macroevolution in London. — Guest Blogger, Discover Magazine, 21 Feb. 2013

Word History

Etymology

macro- + evolution, probably after French macroévolution

First Known Use

1937, in the meaning defined above

Time Traveler
The first known use of macroevolution was in 1937

Rhymes for macroevolution

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Browse Nearby Words

macroetch
macroevolution
macrofossil
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Cite this Entry

“Macroevolution.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/macroevolution. Accessed 31 Mar. 2025.

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