/ Dictionary / Index A agglutinogen: Meaning and Definition of Find definitions for: ag•glu•tin•o•gen Pronunciation: (ag"loo-tin'u-jun, -jen", u glt'n u-), [key] — n. Immunol. an antigen that causes the production of agglutinins. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: agglutinogen (Thesaurus) agglutinin aggrade Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language