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irritation

[ir-i-tey-shuh n] /ˌɪr ɪˈteɪ ʃən/
noun
1.
the act of irritating or the state of being irritated.
2.
something that irritates.
3.
Physiology, Pathology.
  1. the bringing of a bodily part or organ to an abnormally excited or sensitive condition.
  2. the condition itself.
Origin of irritation
1580-1590
1580-90; < Latin irrītātiōn- (stem of irrītātiō). See irritate, -ion
Can be confused
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for irritation

irritation

/ˌɪrɪˈteɪʃən/
noun
1.
something that irritates
2.
the act of irritating or the condition of being irritated
Derived Forms
irritative, 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 irritation
n.

early 15c., in reference to sores and morbid swelling, from Middle French irritation or directly from Latin irritationem (nominative irritatio) "incitement, irritation," noun of action from past participle stem of irritare (see irritate).

Online Etymology Dictionary, © 2010 Douglas Harper
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irritation in Medicine

irritation ir·ri·ta·tion (ĭr'ĭ-tā'shən)
n.

  1. Extreme incipient inflammatory reaction of the body tissues to an injury.

  2. The normal response of a nerve or muscle to a stimulus.

  3. The evocation of a reaction in the body tissues by the application of a stimulus.

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