Definition of myoclonus in English:


Pronunciation /mīˈäklənəs/ /maɪˈɑklənəs/


  • Spasmodic jerky contraction of groups of muscles.

    ‘The acute effects are coma, myoclonus and bradycardia, which generally resolve rapidly without complication.’
    • ‘In particular, there is potential for a neurotoxic metabolite, normeperidine, to accumulate and cause seizures, myoclonus and tremors.’
    • ‘Reported neurological manifestations have included tremor, myoclonus, hyperreflexia, ankle clonus, muscle rigidity, ataxia and incoordination.’
    • ‘The symptom of early-morning myoclonus, unassociated with alteration of consciousness, is often not mentioned by patients unless they are specifically questioned about it.’
    • ‘Twitching or myoclonus may be observed (often mistaken for seizures).’
    tightening, tensing, flexing, constricting