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excretion1

[ik-skree-shuh n] /ɪkˈskri ʃən/
noun
1.
the act of excreting.
2.
the substance excreted, as urine or sweat, or certain plant products.
Origin
1595-1605
1595-1605; < Late Latin excrētiōn- (stem of excrētiō) that which is sifted out. See excrete, -ion

excretion2

[ik-skree-shuh n] /ɪkˈskri ʃən/
noun
1.
the state of being excrescent.
2.
an excrescence.
Origin
1605-15; < Late Latin excrētiōn- (stem of excrētiō), equivalent to Latin excrēt(us) (past participle of excrēscere; see ex-1, crescent) + iōn- -ion
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for excretion
  • Influence of frequent and long-term consumption of legume seeds on excretion of intestinal gases.
  • Blood pressure is often controlled by diuretics that cause sodium excretion in the urine.
  • The human kidneys have been radically modified to enhance salt excretion.
  • Recycling simply represents an obsession with excretion as opposed to consumption.
  • They have also developed urine tests for iodine sufficiency and bromine excretion.
  • The sugar mannitol promotes a vigorous excretion of water from body tissues.
  • Foods rich in soluble fiber reduce cholesterol by increasing its excretion.
  • Urea is excreted by the kidneys, so excretion of urea can reflect kidney function.
  • Because of the low absorption and high excretion rates of chromium, toxicity is not common.
  • Scientists have discovered a key protein in the renal tubes of these mosquitoes that helps with the necessary excretion.
Word Origin and History for excretion
n.

c.1600, from French excrétion (16c.), from Latin excretionem, noun of action from past participle stem of excernere "to discharge" (see excrement).

Online Etymology Dictionary, © 2010 Douglas Harper
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excretion in Medicine

excretion ex·cre·tion (ĭk-skrē'shən)
n.

  1. The act or process of discharging waste matter from the blood, tissues, or organs.

  2. The matter, such as urine, feces, or sweat, that is so excreted.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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excretion in Science
excretion
  (ĭk-skrē'shən)   
The elimination by an organism of waste products that result from metabolic processes. In plants, waste is minimal and is eliminated primarily by diffusion to the outside environment. Animals have specific organs of excretion. In vertebrates, the kidney filters blood, conserving water and producing urea and other waste products in the form of urine. The urine is then passed through the ureters to the bladder and discharged through the urethra. The skin and lungs, which eliminate carbon dioxide, are also excretory organs.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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