a combining form meaning “unequal,” “uneven,” used in the formation of compound words: anisogamous.


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Also especially before a vowel, anis-.

Origin of aniso-

< Greek, combining form of ánisos; see an-1, iso- Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for aniso-


before a vowel anis-

combining form

not equalanisogamy

Word Origin for aniso-

New Latin, from Greek anisos; see an-, iso-
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

Medical definitions for aniso-



Unequal; dissimilar:anisogamy.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.