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[nef-ron] /ˈnɛf rɒn/
noun, Anatomy, Zoology.
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 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for nephron


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
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Word Origin and History for nephron

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
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nephron in Medicine

nephron neph·ron (něf'rŏn)
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.
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nephron in Science

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 © 2002. Published by Houghton Mifflin. All rights reserved.
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