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kidney

[kid-nee] /ˈkɪd ni/
noun, plural kidneys.
1.
Anatomy. either of a pair of bean-shaped organs in the back part of the abdominal cavity that form and excrete urine, regulate fluid and electrolyte balance, and act as endocrine glands.
2.
Zoology. a corresponding organ in other vertebrate animals or an organ of like function in invertebrates.
3.
the meat of an animal's kidney used as food.
4.
constitution or temperament:
He was a quiet child, of a different kidney from his boisterous brothers.
5.
kind, sort, or class:
He is only at ease with men of his own kidney.
Origin
1275-1325
1275-1325; Middle English kidenei, kidenere (singular), kideneres, kideneren (plural); origin uncertain; perhaps a compound based either on nere (singular), neres (plural) kidney (Old English *nēore; compare Old High German nioro, Old Norse nȳra); or ei (singular), eiren (plural) egg1, Old English ǣg (singular), ǣgru (plural) (by association with the organ's shape); for the first element compare dial. kid pod (akin to cod2)
Related forms
kidneylike, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for kidneys
  • Her kidneys were failing and she had gained a grotesque amount of weight due to fluid retention and so forth.
  • In healthy birds, uric acid is excreted by the kidneys and is seen as the white material in their droppings.
  • Diuretics cause the kidneys to remove sodium and water from the body, thereby alleviating pressure on the blood vessel walls.
  • Finally, there is the liver, which turns fat-soluble poisons into watersoluble wastes that can be flushed out through our kidneys.
  • Trees can be thought of as kidneys of the delta, cleansing the system by removing its salts.
  • Klebsiella can also attach to the urinary tract and infect the kidneys.
  • When your kidneys fail, the body starts fill- ing up with uric acid then.
  • Its liver and lungs weIghed a ton apiece, and its kidneys and stomach half a ton.
  • It soon became evident from his empty urine bag that his kidneys had failed, too.
  • Tessa is his new bride, and she is roughly as diplomatic as a punch in the kidneys.
British Dictionary definitions for kidneys

kidney

/ˈkɪdnɪ/
noun
1.
either of two bean-shaped organs at the back of the abdominal cavity in man, one on each side of the spinal column. They maintain water and electrolyte balance and filter waste products from the blood, which are excreted as urine related adjectives nephritic renal
2.
the corresponding organ in other animals
3.
the kidneys of certain animals used as food
4.
class, type, or disposition (esp in the phrases of the same or a different kidney)
Derived Forms
kidneylike, adjective
Word Origin
C14: of uncertain origin
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
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Word Origin and History for kidneys

kidney

n.

early 14c., of unknown origin, originally kidenere, perhaps a compound of Old English cwið "womb" (see bowel) + ey "egg" (see egg (n.)) in reference to the shape of the organ. Figurative sense of "temperament" is from 1550s. Kidney bean is from 1540s, so called for its shape.

Online Etymology Dictionary, © 2010 Douglas Harper
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kidneys in Medicine

kidney kid·ney (kĭd'nē)
n. pl. kid·neys
Either of a pair of organs in the dorsal region of the vertebrate abdominal cavity, functioning to maintain proper water and electrolyte balance, regulate acid-base concentration, and filter the blood of metabolic wastes, which are then excreted as urine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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kidneys in Science
kidney
  (kĭd'nē)   

Either of a pair of organs that are located in the rear of the abdominal cavity in vertebrates. The kidneys regulate fluid balance in the body and filter out wastes from the blood in the form of urine. The functional unit of the kidney is the nephron. Wastes filtered from the blood by the nephrons drain into the ureters, muscular tubes that connect each kidney to the bladder. See also nephron.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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kidneys in Culture

kidneys definition


A pair of organs, the principal parts of the excretory system, located above the waistline at the back of the abdominal cavity. The kidneys filter waste materials from the blood, excreting these wastes in the form of urine; they also regulate the amounts of water and other chemicals in body fluids.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang definitions & phrases for kidneys

kidney

Related Terms

gripe one's ass


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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