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microevolution: Meaning and Definition of

mi•cro•ev•o•lu•tion

Pronunciation: (mī"krō-ev"u-l'shun or, esp. Brit., -ē"vu-), [key]
— n. Biol.
  1. evolutionary change involving the gradual accumulation of mutations leading to new varieties within a species.
  2. minor evolutionary change observed over a short period of time.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
microenvironment microfarad
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