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[ahy-sog-uh-mee] /aɪˈsɒg ə mi/
noun, Biology.
the fusion of two gametes of similar form, as in certain algae.
Origin of isogamy
1890-95; iso- + -gamy Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for isogamy
Historical Examples
  • The gametes show every gradation from complete similarity (isogamy) to a condition like that of Cutleria.

British Dictionary definitions for isogamy


(in some algae and fungi) sexual fusion of gametes of similar size and form Compare heterogamy (sense 1)
Derived Forms
isogamous, 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
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isogamy in Medicine

isogamy i·sog·a·my (ī-sŏg'ə-mē)
Conjugation between gametes of equal size and structure, or between individual cells alike in all respects.

i·sog'a·mous adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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isogamy in Science
A reproductive system characterized by the fusion of gametes (called isogametes) that are not distinguished in size or structure. Isogamy is found in some algae and other protist groups. Compare heterogamy.

isogamous adjective
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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