Definition of "parkinsonism" []

• Parkinson's syndrome. (noun)

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• "These so-called secondary dementias often present with other neurological signs in addition to dementia, such as parkinsonism, myoclonus, seizures, chorea, ataxia, and sensory signs."
• "People who suffer from parkinsonism have many of the same symptoms but in a milder and usually undegenerative form."
• "Mayo Clinic researchers and a group of international collaborators have discovered a correlation between an extreme form of sleep disorder and eventual onset of parkinsonism or dementia."