hydronephrosis Meaning, Definition & Usage

  1. noun accumulation of urine in the kidney because of an obstruction in the ureter

WordNet

Hy`dro*ne*phro"sis noun
Etymology
NL., Gr. "y`dwr water + a kidney.
Definitions
  1. (Med.) An accumulation of urine in the pelvis of the kidney, occasioned by obstruction in the urinary passages.

Webster 1913