irritability


irritability
The property inherent in protoplasm of reacting to a stimulus. [L. irritabilitas, fr. irrito, pp. -atus, to excite]
- electric i. the response of a nerve or muscle to the passage of a current of electricity; in cases of degeneration in nerve or muscle this i. is altered or lost. See modal alteration, qualitative alteration, quantitative alteration.
- myotatic i. the ability of a muscle to contract in response to the stimulus produced by a sudden stretching.

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ir·ri·ta·bil·i·ty .ir-ət-ə-'bil-ət-ē n, pl -ties
1) the property of protoplasm and of living organisms that permits them to react to stimuli
2 a) quick excitability to annoyance, impatience, or anger
b) abnormal or excessive excitability of an organ or part of the body (as the stomach or bladder)

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n.
(in physiology) the property of certain kinds of tissue that enables them to respond in a specific way to outside stimuli. Irritability is shown by nerve cells, which can generate and transmit electrical impulses when stimulated appropriately, and by muscle cells, which contract when stimulated by nerve impulses.

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ir·ri·ta·bil·i·ty (ir″ĭ-tə-bilґĭ-te) 1. the quality or state of being irritable. 2. abnormal responsiveness to slight stimuli.

Medical dictionary. 2011.

Synonyms:

Look at other dictionaries:

  • Irritability — Ir ri*ta*bil i*ty, n. [L. irritabilitas: cf. F. irritabilit[ e].] [1913 Webster] 1. The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper. [1913 Webster] 2. (Physiol.) A natural… …   The Collaborative International Dictionary of English

  • irritability — (n.) 1755, from IRRITABLE (Cf. irritable) + ITY (Cf. ity) …   Etymology dictionary

  • Irritability — This article is about the medical condition. For the webcomic, see Irritability (webcomic). Irritability ICD 10 R45.4 ICD 9 799.2 Irritability is an excessive response to stimuli. The term is used for …   Wikipedia

  • irritability — /ir i teuh bil i tee/, n., pl. irritabilities. 1. the quality or state of being irritable. 2. Physiol., Biol. the ability to be excited to a characteristic action or function by the application of some stimulus: Protoplasm displays irritability… …   Universalium

  • irritability — noun a) The state or quality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper. b) A natural susceptibility, characteristic of all living organisms, tissues, and cells, to the influence of certain stimuli …   Wiktionary

  • irritability — n. (in physiology) the property of certain kinds of tissue that enables them to respond in a specific way to outside stimuli. Irritability is shown by nerve cells, which can generate and transmit electrical impulses when stimulated appropriately …   The new mediacal dictionary

  • irritability — jaudrumas statusas T sritis fizika atitikmenys: angl. excitability; irritability vok. Erregbarkeit, f; Reizbarkeit, f rus. возбудимость, f; раздражимость, f; раздражительность, f pranc. excitabilité, f; irritabilité, f …   Fizikos terminų žodynas

  • irritability — jautrumas statusas T sritis ekologija ir aplinkotyra apibrėžtis Organizmo ar receptoriaus gebėjimas reaguoti į įvairaus stiprumo dirgiklį ir jo pokyčius. atitikmenys: angl. irritability; sensitiveness; sensitivity vok. Empfindlichkeit, f;… …   Ekologijos terminų aiškinamasis žodynas

  • irritability — dirglumas statusas T sritis Kūno kultūra ir sportas apibrėžtis Viso organizmo, organų, audinių arba ląstelių reagavimas į aplinkos poveikį (dirgiklius) fiziologinės būklės pokyčiu. atitikmenys: angl. irritability vok. Reizbarkeit, f rus.… …   Sporto terminų žodynas

  • irritability — dirglumas statusas T sritis augalininkystė apibrėžtis Ląstelės arba organizmo sugebėjimas pajusti išorinės aplinkos poveikius. atitikmenys: angl. irritability rus. раздражимость …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas


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