noun Pathology.

dilation of the branches and pelvic cavity of the kidney, caused by an accumulation of urine resulting from obstruction of normal outflow.

Origin of hydronephrosis

First recorded in 1840–50; hydro-1 + nephrosis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

hydronephrosis in Medicine




The dilation of the pelvis and calices of one or both kidneys because of the accumulation of urine resulting from obstruction to urine outflow.uronephrosis
Related formshy′dro•ne•phrotic (-frŏtĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.