de·plete

[dih-pleet]
verb (used with object), de·plet·ed, de·plet·ing.
to decrease seriously or exhaust the abundance or supply of: The fire had depleted the game in the forest. Extravagant spending soon depleted his funds.

Origin:
1800–10; < Latin dēplētus empty (past participle of dēplēre to empty out), equivalent to dē- de- + plē(re) to fill + -tus past participle suffix

de·plet·a·ble, adjective
de·ple·tion, noun
de·ple·tive, de·ple·to·ry [dih-plee-tuh-ree] , adjective
non·de·plet·a·ble, adjective
non·de·ple·tion, noun
non·de·ple·tive, adjective
non·de·ple·to·ry, adjective
pre·de·plete, verb (used with object), pre·de·plet·ed, pre·de·plet·ing.
pre·de·ple·tion, noun
un·de·plet·ed, adjective


use up, drain, reduce, consume, lessen.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Deplete is a GRE word you need to know.
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to make or become worse or inferior in character, quality, value, etc.
The act of defaming; false or unjustified injury of the good reputation of another, as by slander or libel; calumny.
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World English Dictionary
deplete (dɪˈpliːt) [Click for IPA pronunciation guide]
 
vb
1.  to use up (supplies, money, energy, etc); reduce or exhaust
2.  to empty entirely or partially
3.  med to empty or reduce the fluid contents of (an organ or vessel)
 
[C19: from Latin dēplēre to empty out, from de- + plēre to fill]
 
de'pletable
 
adj
 
de'pletion
 
n
 
de'pletive
 
adj
 
de'pletory
 
adj

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

deplete
1807, back-formation from depletion. Related: Depleted; depleting.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

deplete de·plete (dĭ-plēt')
v. de·plet·ed, de·plet·ing, de·pletes

  1. To use up something, such as a nutrient.

  2. To empty something out, as the body of electrolytes.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
The plants and algae deplete the available oxygen supply.
The disadvantage of this type of respirator is that it causes the filter to
  deplete rapidly.
They said that levels of the chemicals that deplete oxygen were rising year to
  year, weakening the gulf's resistance to pollution.
The sport was quick to realise that radio and television would enhance revenues
  rather than deplete them.
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