Main Entry: Par·kin·son's disease

Pronunciation: \ˈpär-kən-sənz-\

Function: noun

Etymology: James Parkinson †1824 English physician

Date: 1877

: a chronic progressive neurological disease chiefly of later life that is linked to decreased dopamine production in the substantia nigra and is marked especially by tremor of resting muscles, rigidity, slowness of movement, impaired balance, and a shuffling gait —called also paralysis agitans, Parkinson's, Parkinson's syndrome