/ Dictionary / Index U urinary bladder: Meaning and Definition of Find definitions for: u'rinary blad'der Pronunciation: [key] — Anat., Zool. Anat.,Zool. a distensible, muscular and membranous sac, in which the urine is retained until it is discharged from the body. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. urinary urinary calculus Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language