• WordNet 3.6
    • n hydronephrosis accumulation of urine in the kidney because of an obstruction in the ureter
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Webster's Revised Unabridged Dictionary
    • n Hydronephrosis (Med) An accumulation of urine in the pelvis of the kidney, occasioned by obstruction in the urinary passages.
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Century Dictionary and Cyclopedia
    • n hydronephrosis In pathology, a condition produced by obstruction of the outflow of the urine through the ureter, so that the ureter and the renal pelvis become greatly distended.
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Webster's Revised Unabridged Dictionary
NL., Gr. "y`dwr water + a kidney


In literature:

The Philosophical Transactions contain the account of a case of hydronephrosis in which there were 240 pounds of water in the sac.
"Anomalies and Curiosities of Medicine" by George M. Gould
The after-treatment in the event of the development of hydronephrosis is on ordinary lines.
"Surgical Experiences in South Africa, 1899-1900" by George Henry Makins
In this way hydronephrosis, or distension of the kidney with urine, may be produced.
"Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 7" by Various