/ Dictionary / Index A antigenic determinant: Meaning and Definition of Find definitions for: antigen'ic deter'minant Pronunciation: [key] determinant (def. 3). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antigen antigestational drug Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language