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irritability

[ir-i-tuh-bil-i-tee] /ˌɪr ɪ təˈbɪl ɪ ti/
noun, plural irritabilities.
1.
the quality or state of being irritable.
2.
Physiology, Biology. the ability to be excited to a characteristic action or function by the application of some stimulus:
Protoplasm displays irritability by responding to heat.
Origin of irritability
1745-1755
1745-55; < Latin irrītābilitās. See irritable, -ity
Related forms
nonirritability, noun
superirritability, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for irritability
Contemporary Examples
Historical Examples
  • irritability confessed itself in this gentleman's face, which was of a clay color, with white spots.

    John March, Southerner George W. Cable
  • There was a dark expression in her countenance, but the traces of irritability were gone.

    Deerbrook Harriet Martineau
  • As the heat increased, in the same degree her irritability was manifested.

    Cyrus W. Field; his Life and Work Isabella Field Judson
  • A Hong Kong hotel is not a place for a person predisposed to irritability.

    East of Suez Frederic Courtland Penfield
  • The loss of nervous vitality makes itself evident by a feeling either of exhaustion or irritability.

    Religion and Lust James Weir
Word Origin and History for irritability
n.

1755, from irritable + -ity.

Online Etymology Dictionary, © 2010 Douglas Harper
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irritability in Medicine

irritability ir·ri·ta·bil·i·ty (ĭr'ĭ-tə-bĭl'ĭ-tē)
n.

  1. The capacity to respond to stimuli.

  2. Abnormal or excessive sensitivity to stimuli of an organism, organ, or body part.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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17
18
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