/ Dictionary / Index C cystoscope: Meaning and Definition of Find definitions for: cys•to•scope Pronunciation: (sis'tu-skōp"), [key] — n. Med. a slender, cylindrical instrument for examining the interior of the urinary bladder and for the introduction of medication therein. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cystometer cystoscopy Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language