/ Dictionary / Index D determinator: Meaning and Definition of Find definitions for: de•ter•mi•na•tor Pronunciation: (di-tûr'mu-nā"tur), [key] — n. determiner (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. determinative determine Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language