/ Dictionary / Index H heterosex: Meaning and Definition of Find definitions for: het•er•o•sex Pronunciation: (het'ur-u-seks"), [key] — n. Informal. heterosexuality. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. heteroptics heterosexism Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language