(luán) — (bound form) spasm; convulsion; (bound form) contracted; crooked; cramped

挛 is a bound morpheme used in medical/formal terms like 痉挛 and 挛缩, meaning spasm or contraction. It almost never appears alone.

bound form
(bound form) spasmconvulsion(bound form) contractedcrookedcramped

예문

  • Tā de tuǐ bù jī ròu tū rán jìng luán, téng dé zhàn bù qǐ lái.
    The muscles in his leg suddenly went into spasm, and the pain made him unable to stand.
  • Cháng qī wò chuáng de bìng rén róng yì chū xiàn guān jié luán suō.
    Patients who stay in bed for a long time are prone to joint contracture.
  • Hán lěng cì jī kě néng yòu fā miàn bù jī ròu jìng luán.
    Cold stimulation can trigger facial muscle spasms.

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