/ Dictionary / Index H heterosexism: Meaning and Definition of Find definitions for: het•er•o•sex•ism Pronunciation: (het"ur-u-sek'siz-um), [key] — n. a prejudiced attitude or discriminatory practices against homosexuals by heterosexuals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: heterosexism (Thesaurus) heterosex heterosexual 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