/ Dictionary / Index A anti-idiotype: Meaning and Definition of Find definitions for: an•ti-id•i•o•type Pronunciation: (an"tē-id'ē-u-tīp", an"tī-), [key] — n. Immunol. a molecular arrangement on an antibody that is the counterpart of that on a different antibody, thus making one an antigen to the other. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. anti-id anti-imperialist 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