/ Dictionary / Index D determinative: Meaning and Definition of Find definitions for: de•ter•mi•na•tive Pronunciation: (di-tûr'mu-nā"tiv, -nu-tiv), [key] — adj. serving to determine; determining. —n. something that determines. a graphic symbol used in ideographic writing to denote a semantic class and written next to a word to indicate in what semantic category that word is to be understood, thus at times distinguishing homographs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: determinative (Thesaurus) determination determinator 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