excretion

1 [ik-skree-shuhn]

Origin:
1595–1605; < Late Latin excrētiōn- (stem of excrētiō) that which is sifted out. See excrete, -ion

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excretion

2 [ik-skree-shuhn]
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

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
excrete (ɪkˈskriːt)
 
vb
1.  to discharge (waste matter, such as urine, sweat, carbon dioxide, or faeces) from the body through the kidneys, skin, lungs, bowels, etc
2.  (of plants) to eliminate (waste matter, such as carbon dioxide and salts) through the leaves, roots, etc
 
[C17: from Latin excernere to separate, discharge, from cernere to sift]
 
ex'creter
 
n
 
ex'cretion
 
n
 
ex'cretive
 
adj
 
ex'cretory
 
adj

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

excretion
c.1600, from L. excretus, pp. of excernere "to discharge" (see excrement).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

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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American Heritage
Science Dictionary
excretion   (ĭk-skrē'shən)  Pronunciation Key 
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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Example sentences
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.
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