irritability

[ir-i-tuh-bil-i-tee]
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:
1745–55; < Latin irrītābilitās. See irritable, -ity

nonirritability, noun
superirritability, noun
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World English Dictionary
irritable (ˈɪrɪtəbəl)
 
adj
1.  quickly irritated; easily annoyed; peevish
2.  (of all living organisms) capable of responding to such stimuli as heat, light, and touch
3.  pathol abnormally sensitive
 
irrita'bility
 
n
 
'irritableness
 
n
 
'irritably
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

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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Example sentences
It leads to irritability, irrationality, and irascibility.
Sleeping difficulties, irritability, and anger were also common.
Psychological symptoms, such as anxiety and irritability, can also be present.
Even as long as the body retained its irritability, a tendency to this habitual
  movement was evident.
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