n. The basic structural and functional unit of the kidney, which filters the blood in order to regulate chemical concentrations, and thereby produces urine.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. any of the small tubules that are the excretory units of the vertebrate kidney
Word Usage
"This is known as nephron-sparing surgery, or partial nephrectomy, and is commonly performed using traditional open surgery."