n :  any of several arteries that arise from the internal iliac artery or one of its branches and that supply the urinary bladder and adjacent parts: as  a  :  any of several arteries that arise from the umbilical artery and supply the upper part of the bladder - called also superior vesical , superior vesical artery   b  :  one that arises from the internal iliac artery or the internal pudendal artery and that supplies the bladder, prostate, and seminal vesicles - called also inferior vesical , inferior vesical artery  .
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2004.