ureterocele

[yu-rētə-rō-sēl′]
n.
  1. Saccular dilation of the terminal portion of the ureter at the entrance into the urinary bladder, due to a congenital stricture of the ureteral meatus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.