ureteric orifice(redirected from orificium ureteris)
the opening of the ureter in the bladder, situated one at each lateral angle of the trigone; wide gaping of the ostium usually indicates vesicoureteral reflux.
Farlex Partner Medical Dictionary © Farlex 2012
The opening of the ureter into the bladder.
See also: orifice
Medical Dictionary, © 2009 Farlex and Partners