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[ik-skloo-zhuh n] /ɪkˈsklu ʒən/
an act or instance of excluding.
the state of being excluded.
Physiology. a keeping apart; blocking of an entrance.
Origin of exclusion
late Middle English
1375-1425; late Middle English < Latin exclūsiōn- (stem of exclūsiō), equivalent to exclūs(us) (past participle of exclūdere to shut out; see exclude) + -iōn- -ion
Related forms
exclusionary, adjective
nonexclusion, noun
preexclusion, noun
self-exclusion, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for exclusion
Contemporary Examples
Historical Examples
  • I have noticed that you invariably wear blue, to the exclusion of all other colors.

    Vashti Augusta J. Evans Wilson
  • The struggle of the poor was for food, to the exclusion of all other interests.

    Mizora: A Prophecy Mary E. Bradley
  • Are members, whose conduct may be obnoxious, to vote my exclusion because to them my opinions are obnoxious?

  • He had been true to James in the days of the exclusion Bill.

  • It operates to this end independently—yea, even to the exclusion—of all works of self-righteousness.

    Sermons Clement Bailhache
British Dictionary definitions for exclusion


the act or an instance of excluding or the state of being excluded
Derived Forms
exclusionary, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for exclusion

c.1400, from Latin exclusionem (nominative exclusio), noun of action from past participle stem of excludere (see exclude).

Online Etymology Dictionary, © 2010 Douglas Harper
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exclusion in Medicine

exclusion ex·clu·sion (ĭk-sklōō'zhən)
Surgical isolation of a part or segment without removal from the body.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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