trigger finger

trigger finger
trigger finger n an abnormal condition in which flexion or extension of a finger may be momentarily obstructed by spasm followed by a snapping into place

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an impairment in the ability to extend a finger, resulting either from a nodular thickening in the flexor tendon or a narrowing of the flexor tendon sheath. On unclenching the fist, the affected finger (usually the third or fourth) at first remains bent and then, on overcoming the resistance, suddenly straightens ('triggers'). Treatment is by incision of the tendon sheath or injection of steroid around the tendon.

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a finger liable to have a momentary spasmodic arrest of flexion or extension followed by a snapping into place, due either to stenosing tenosynovitis or to a nodule in the flexor tendon. See also lock f.

Medical dictionary. 2011.

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Look at other dictionaries:

  • trigger finger — n. the finger used to press the trigger of a firearm; specif., the forefinger …   English World dictionary

  • Trigger finger — For the Belgian band, see Triggerfinger. Trigger finger can also mean the finger which is used to operate the trigger of a gun or of a power tool. Trigger finger Classification and external resources ICD 10 M65.3 …   Wikipedia

  • trigger finger — /ˈtrɪgə fɪŋgə/ (say triguh fingguh) noun 1. the finger by which the trigger of a gun is pulled. 2. Medicine a finger, one of the joints of which jerks suddenly when an attempt is made to bend it gradually. –phrase 3. have an itchy trigger finger …  

  • trigger finger — 1. any finger, usually the forefinger, that presses the trigger of a gun. 2. either forefinger, depending on which hand is dominant. 3. Pathol. difficulty in straightening or bending a ring finger, caused by inflammation and thickening of its… …   Universalium

  • trigger finger — noun 1. : a finger used in pressing the trigger of a firearm; also : the forefinger of the dominant hand 2. : a finger in which flexion or extension may be momentarily obstructed by spasm followed by a snapping into place …   Useful english dictionary

  • trigger finger — noun a) a finger used in pulling the trigger of a firearm b) the forefinger …   Wiktionary

  • trigger finger — noun 1》 the forefinger of the right hand, used to pull the trigger of a gun. 2》 Medicine a swelling in a tendon causing a finger to jerk or snap straight when the hand is extended …   English new terms dictionary

  • trigger finger — trig′ger fin ger n. any finger, usu. the forefinger, that presses the trigger of a gun • Etymology: 1820–30 …   From formal English to slang

  • trigger finger — an impairment in the ability to extend a finger, resulting either from a nodular thickening in the flexor tendon or a narrowing of the flexor tendon sheath. On unclenching the fist, the affected finger (usually the third or fourth) at first… …   The new mediacal dictionary

  • itchy trigger finger — noun a tendency to act in haste or without consideration Given any remote chance to gun down an effective spokesman for conservative economics as a secret fascist and torturer, even Nobel laureates can, we see, succumb to an itchy trigger finger …   Wiktionary

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