Definition of clonus in English:



mass nounMedicine
  • Muscular spasm involving repeated, often rhythmic, contractions.

    ‘the patient suffered partial seizures accompanied with clonus in the left arm’
    • ‘Physical examination revealed left ankle clonus, positive Babinski sign on the left, and left lower extremity weakness.’
    • ‘The patient should be tested for deep tendon reflexes and clonus.’
    • ‘Medication is indicated when stiffness, spasms, or clonus interferes with function or sleep.’
    • ‘He was getting clonus in his quads which made him more and more unsteady.’
    • ‘Strictly speaking this is classed as clonus rather than tremor.’
    muscle spasm, muscular spasm, muscle contraction, muscular contraction, pang, twinge
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Early 19th century: from Greek klonos ‘turmoil’.