Irritability meaning

The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper.
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(physiology) A natural susceptibility, characteristic of all living organisms, tissues, and cells, to the influence of certain stimuli, response being manifested in a variety of ways.
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(medicine) A condition of morbid excitability of an organ or part of the body; undue susceptibility to the influence of stimuli.
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Origin of irritability

  • From Latin irritabilitas.

    From Wiktionary