jerk

jerk
1. A sudden pull. 2. SYN: deep reflex.
- ankle j. SYN: Achilles reflex.
- chin j. SYN: jaw reflex.
- crossed j. SYN: crossed reflex.
- crossed adductor j. SYN: crossed adductor reflex.
- crossed knee j. SYN: crossed knee reflex.
- elbow j. SYN: triceps reflex.
- jaw j. SYN: jaw reflex.
- knee j. SYN: patellar reflex.
- supinator j. SYN: brachioradial reflex.

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jerk 'jərk n an involuntary spasmodic muscular movement due to reflex action esp one induced by an external stimulus see KNEE JERK

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n.
the sudden contraction of a muscle in response to a nerve impulse. The knee jerk (see patellar reflex) is the reflex kicking movement produced by contraction of the quadriceps muscle of the thigh after it has been stretched by tapping the tendon below the knee. Eliciting this and other jerks, such as the ankle and elbow jerks, is a means of testing the nerve pathways, via the spinal cord, which are involved in reflex.

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(jurk) a sudden reflex or involuntary movement.

Medical dictionary. 2011.

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  • jerk — jerk …   Dictionnaire des rimes

  • jerk — [ (d)ʒɛrk ] n. m. • 1965; mot angl. « secousse » ♦ Anglic. Danse moderne qui consiste à imprimer des secousses rythmées à tout le corps (tête et bras compris), comme si l on entrait en transes. V. intr. <conjug. : 1> JERKER [ (d)ʒɛrke ]. ●… …   Encyclopédie Universelle

  • jerk´i|ly — jerk|y1 «JUR kee», adjective, jerk|i|er, jerk|i|est. with sudden starts and stops; with jerks; spasmodic. SYNONYM(S): convulsive. ╂[< …   Useful english dictionary

  • jerk|y — jerk|y1 «JUR kee», adjective, jerk|i|er, jerk|i|est. with sudden starts and stops; with jerks; spasmodic. SYNONYM(S): convulsive. ╂[< …   Useful english dictionary

  • Jerk — Jerk, v. t. [imp. & p. p. {Jerked} (j[ e]rkt); p. pr. & vb. n. {Jerking}.] [Akin to yerk, and perh. also to yard a measure.] [1913 Webster] 1. To beat; to strike. [Obs.] Florio. [1913 Webster] 2. To give a quick and suddenly arrested thrust, push …   The Collaborative International Dictionary of English

  • Jerk — Jerk, n. [1913 Webster] 1. A short, sudden pull, thrust, push, twitch, jolt, shake, or similar motion. [1913 Webster] His jade gave him a jerk. B. Jonson. [1913 Webster] 2. A sudden start or spring. [1913 Webster] Lobsters . . . swim backwards by …   The Collaborative International Dictionary of English

  • jerk — jerk·er; jerk·i·ly; jerk·i·ness; jerk·ing·ly; jerk; …   English syllables

  • jerk — jerk1 [jʉrk] vt. [var. of archaic yerk < ?] 1. to pull, twist, push, thrust, or throw with a sudden, sharp movement ☆ 2. [Old Informal] to make and serve (ice cream sodas) vi. 1. to move with a jerk or in jerks 2. to twitch n …   English World dictionary

  • jerk — ► NOUN 1) a quick, sharp, sudden movement. 2) Weightlifting the raising of a barbell above the head from shoulder level by an abrupt straightening of the arms and legs. 3) informal, chiefly N. Amer. a contemptibly foolish person. ► VERB 1) move… …   English terms dictionary

  • Jerk — (j[ e]rk), v. t. [Corrupted from Peruv. charqui dried beef.] To cut into long slices or strips and dry in the sun; as, to jerk beef. See {Charqui}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Jerk — bezeichnet einen kinematischen Begriff, siehe Ruck eine Fleischzubereitung, siehe Beef Jerky Würzmischungen der kreolischen Küche, siehe Jerk Würzmischung einen Rap Tanz aus Los Angeles, siehe Jerk (Raptanz) plötzliche Änderung in der säkularen… …   Deutsch Wikipedia

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