- the filtering and excretory unit of the kidney, consisting of the glomerulus and tubules.
Origin of nephron
1930–35; < German; alteration of Greek nephrós kidney
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any of the minute urine-secreting tubules that form the functional unit of the kidneys
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1932, from German nephron (1924), from Greek nephros "kidney," from PIE *negwhro- "kidney" (cf. Latin nefrones, Old Norse nyra, Dutch nier, German Niere "kidney").
Online Etymology Dictionary, © 2010 Douglas Harper
- The functional unit of the kidney, consisting of the renal corpuscle, the proximal and distal convoluted tubules, and the nephronic loop.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- The functional unit of the kidney, in which waste products are filtered from the blood and urine is produced. The nephron consists of a system of tubules in close association with a network of blood vessels. As fluid that is filtered through the glomerulus of the nephron enters the tubules, its composition is gradually changed by the absorption and secretion of solutes, and it eventually leaves the nephron as urine. See more at Bowman's capsule glomerulus loop of Henle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.