/ Dictionary / Index A autoimmunization: Meaning and Definition of Find definitions for: au•to•im•mu•ni•za•tion Pronunciation: (ô"tō-im"yu-nu-zā'shun, -i-my"-), [key] — n. Immunol. antibody production by an organism in response to and against any of its own tissues, cells, or cell components. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. autoimmune disease autoinfection Related Content Daily Word Quiz: longevity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language