/ Dictionary / Index I immune response: Meaning and Definition of Find definitions for: immune' response" Pronunciation: [key] any of the body's immunologic reactions to an antigen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. immune complex immune serum Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language