/ Dictionary / Index A anti-id: Meaning and Definition of Find definitions for: an•ti-id Pronunciation: (an"tē-id', an"tī-), [key] — n. Immunol. Informal. an anti-idiotypic antibody. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. anti-icer anti-idiotype Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language