/ Dictionary / Index C cystitis: Meaning and Definition of Find definitions for: cys•ti•tis Pronunciation: (si-stī'tis), [key] — n. Pathol. inflammation of the urinary bladder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cystitis (Thesaurus) cystinuria cysto- Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language