/ Dictionary / Index I immunology: Meaning and Definition of Find definitions for: im•mu•nol•o•gy Pronunciation: (im"yu-nol'u-jē), [key] — n. the branch of science dealing with the components of the immune system, immunity from disease, the immune response, and immunologic techniques of analysis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: immunology (Thesaurus) immunol. immunopathology 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