/ Thesaurus / U Synonyms of urinary bladder Find synonyms for: Noun1. urinary bladder, bladder, vesicausage: a membranous sac for temporary retention of urineWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language