/ Dictionary / Index I isoagglutinin: Meaning and Definition of Find definitions for: i•so•ag•glu•ti•nin Pronunciation: (ī"sō-u-glt'n-in), [key] — n. an agglutinin that can effect isoagglutination. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: isoagglutinin (Thesaurus) isoagglutination isoamyl Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language