Meaning of 攣る in Japanese

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Definition of 攣る

つる(tsuru) 【攣る ·痙る】

(v5r) to cramp; to be cramped; to contract
怒ったり緊張すると首がつる。
I feel the tension in my neck, where it gets sore and stiff.

ひきつる(hikitsuru) 【引きつる ·引き攣る ·引攣る】

(v5r) to have a cramp (spasm, convulsion, twitch); to become stiff
ジョンの顔は引きつっていた。
John's face was drawn.

あしがつる(ashigatsuru) 【足がつる ·足が攣る ·足が痙る】

(exp, v5r) to have one's leg cramp →Related words: 攣る
水泳中に足がつった。
I got a cramp in my leg while swimming.