excitability vs irritability what difference

what is difference between excitability and irritability

English

Etymology

excite +‎ -ability

Noun

excitability (countable and uncountable, plural excitabilities)

  1. (uncountable) The state of being excitable
  2. (countable) A measure of how easy something is to excite


English

Etymology

From Latin irritabilitās.

Pronunciation

  • IPA(key): /ˌɪɹɪtəˈbɪlɪti/

Noun

irritability (countable and uncountable, plural irritabilities)

  1. The state or quality of being irritable; quick excitability
  2. (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.
    • 1835, Samuel Taylor Coleridge, Specimens of the Table Talk
      There is growth only in plants; but there is irritability, or, a better word, instinctivity, in insects.
  3. (medicine) A condition of morbid excitability of an organ or part of the body; undue susceptibility to the influence of stimuli.

Synonyms

  • (state of being irritable): petulance, fretfulness

Translations

References

  • irritability in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
  • irritability in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.

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