/ Dictionary / Index D dichotomous: Meaning and Definition of Find definitions for: di•chot•o•mous Pronunciation: (di-kot'u-mus), [key] — adj. divided or dividing into two parts. of or pertaining to dichotomy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dichotomous (Thesaurus) dichotomize dichotomy Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language