[ mak-roh-ev-uh-loo-shuh n or, esp. British, -ee-vuh- ]
/ ˌmæk roʊˌɛv əˈlu ʃən or, esp. British, -ˌi və- /

noun Biology.

major evolutionary transition from one type of organism to another occurring at the level of the species and higher taxa.

Origin of macroevolution

First recorded in 1935–40; macro- + evolution

Related forms

mac·ro·ev·o·lu·tion·ar·y, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for macroevolution


/ (ˌmækrəʊˌiːvəˈluːʃən) /


biology the evolution of large taxonomic groups such as genera and families

Derived Forms

macroevolutionary, adjective
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

Science definitions for macroevolution


[ măk′rō-ĕv′ə-lōōshən ]

Evolution that results in the formation of a new taxonomic group above the level of a species.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.