/ Dictionary / Index H heterosexual: Meaning and Definition of Find definitions for: het•er•o•sex•u•al Pronunciation: (het"ur-u-sek'sh-ul or, esp. Brit., -seks'y-), [key] — adj. of, pertaining to, or exhibiting heterosexuality. pertaining to the opposite sex or to both sexes. —n. a heterosexual person. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: heterosexual (Thesaurus) heterosexism heterosexuality 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