[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
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- biology the evolution of large taxonomic groups such as genera and families
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- Evolution that results in the formation of a new taxonomic group above the level of a species.
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