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macroevolution

 - 3 dictionary results

mac⋅ro⋅ev⋅o⋅lu⋅tion

  [mak-roh-ev-uh-loo-shuhn or, especially Brit., -ee-vuh-]
Use macroevolution in a Sentence
–noun Biology.
major evolutionary transition from one type of organism to another occurring at the level of the species and higher taxa.
Origin:
1935–40; macro- + evolution

Related forms:
mac⋅ro⋅ev⋅o⋅lu⋅tion⋅ar⋅y, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To macroevolution
mac·ro·ev·o·lu·tion   (māk'rō-ěv'ə-lōō'shən, -ē'və-)   
n.  Large-scale evolution occurring over geologic time that results in the formation of new taxonomic groups.
mac'ro·ev'o·lu'tion·ar'y (-shə-něr'ē) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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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.
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