/ Dictionary / Index A anisogamous: Meaning and Definition of Find definitions for: an•i•sog•a•mous Pronunciation: (an"ī-sog'u-mus), [key] — adj. Biol. reproducing by the fusion of dissimilar gametes or individuals, usually differing in size. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: anisogamous (Thesaurus) anisogamete anisogamy Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language