/ Dictionary / Index I iritis: Meaning and Definition of Find definitions for: i•ri•tis Pronunciation: (ī-rī'tis), [key] — n. Ophthalm. inflammation of the iris of the eye. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: iritis (Thesaurus) iris shutter irk 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