[mak-roh-ev-uh-loo-shuhn or, esp. British, -ee-vuh-]
noun Biology.
major evolutionary transition from one type of organism to another occurring at the level of the species and higher taxa.

1935–40; macro- + evolution

macroevolutionary, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To macroevolution
World English Dictionary
macroevolution (ˌmækrəʊˌiːvəˈluːʃən)
biology the evolution of large taxonomic groups such as genera and families

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
macroevolution   (māk'rō-ěv'ə-l'shən)  Pronunciation Key 
Evolution that results in the formation of a new taxonomic group above the level of a species.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Some teach evolutionary biology as though it only applies to molecular biology-completely ignoring macroevolution of species.
Related Words
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature