from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Anatomy Either one 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.
- n. The kidney of certain animals, eaten as food.
- n. An excretory organ of certain invertebrates.
- n. Temperment; kind: a person of the same kidney.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An organ in the body that filters the blood, producing urine.
- n. This organ (of an animal) cooked as food
- n. constitution, temperament, nature
from the GNU version of the Collaborative International Dictionary of English
- n. A glandular organ which excretes urea and other waste products from the animal body; a urinary gland.
- n. Habit; disposition; sort; kind.
- n. A waiter.
from The Century Dictionary and Cyclopedia
- n. In anatomy, a glandular structure whose function is the purification of the blood by the excretion of urine; one of the renes or reins; a renal organ.
- n. Anything resembling a kidney in shape or otherwise, as a potato.
- n. plural The inmost parts; the reins.
- n. A waiting-servant.
- n. In min., a concretion shaped like a kidney.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. either of two bean-shaped excretory organs that filter wastes (especially urea) from the blood and excrete them and water in urine
Middle English kidenei.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English kednei, kidenei, from earlier kidnēre, kidenēre ("kidney"). Of uncertain origin. Probably a compound consisting of Middle English *kid-, *quid- ("belly, womb"), from Old English cwiþ, cwiþa ("belly, womb, stomach") + Middle English nēre ("kidney"), from Old English *nēore ("kidney"), from Proto-Germanic *neurô (“kidney”), from Proto-Indo-European *negʷh-r- (“kidney”). If so, then related to Dutch nier ("kidney"), German Niere ("kidney"), Danish nyre ("kidney"), Swedish njure ("kidney"). (Wiktionary)