[mak-roh-ev-uh-loo-shuh n or, esp. British, -ee-vuh-]
- major evolutionary transition from one type of organism to another occurring at the level of the species and higher taxa.
Origin of macroevolution
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- biology the evolution of large taxonomic groups such as genera and families
- Evolution that results in the formation of a new taxonomic group above the level of a species.
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