urine

[yoor-in]
noun
the liquid-to-semisolid waste matter excreted by the kidneys, in humans being a yellowish, slightly acid, watery fluid.

Origin:
1275–1325; Middle English < Old French < Latin ūrīna

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World English Dictionary
urine (ˈjʊərɪn)
 
n
the pale yellow slightly acid fluid excreted by the kidneys, containing waste products removed from the blood. It is stored in the urinary bladder and discharged through the urethraRelated: uretic
 
Related: uretic
 
[C14: via Old French from Latin ūrīna; related to Greek ouron, Latin ūrīnāre to plunge under water]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

urine
early 14c., from O.Fr. urine (12c.), from L. urina "urine," from PIE *ur- (cf. Gk. ouron "urine"), variant of base *awer- "to moisten, flow" (cf. Skt. var "water," Avestan var "rain," Lith. jures "sea," O.E. wær, O.N. ver "sea," O.N. ur "drizzling rain." Urinate is a 1590s back-formation from urination
(early 15c.).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

urine u·rine (yur'ĭn)
n.
The waste product secreted by the kidneys that in mammals is a fluid that is yellow to amber in color, slightly acidic, and discharged from the body through the urethra.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
urine   (yr'ĭn)  Pronunciation Key 
A liquid containing multiple waste products of metabolism, especially urea and other nitrogenous compounds, that are filtered from the blood by the kidneys. Urine is stored in the urinary bladder and is excreted from the body through the urethra.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

urine definition


The fluid produced by the kidneys, consisting of water and dissolved substances, that is stored in the bladder and discharged through the urethra. (See excretory system.)

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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Example sentences for urine
Each of these metabolites is further metabolized and then excreted in the urine.
A pill that gives its male users an absurdly long and strong stream of urine.
When ingested by people it is metabolized rapidly and excreted in the urine.
The human body sheds skin cells and body oils, and exudes sweat, urine, and
  feces.
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