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Meaning of heterogametic

het•er•o•ga•met•ic

Pronunciation: (het"u-rō-gu-met'ik), [key]
— adj. Genetics.
  1. (of a species or individual organism) having two unlike gametes. Cf. homogametic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.