macroevolution

noun

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mac·ro·evo·lu·tion | \ ˈma-krō-ˌe-və-ˈlü-shən

also -ˌē-və- \

Definition of macroevolution

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

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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, 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, 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.