Relating to or the suffering from parkinsonism (1).
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par·kin·so·nian .pär-kən-'sō-nē-ən, -nyən adj
1) of or similar to that of parkinsonism
2) affected with parkinsonism and esp. Parkinson's disease
Par·kin·son 'pär-kən-sən James (1755-1824)
British surgeon. Parkinson published a monograph on paralysis agitans in 1817. His classic description established the disease as a clinical entity, and ever since his name has been closely identified with it.
parkinsonian n an individual affected with parkinsonism and esp. Parkinson's disease
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par·kin·so·ni·an (pahr″kin-soґne-ən) named for James Parkinson or pertaining to parkinsonism.Medical dictionary. 2011.