ballism

noun
bal·​lism | \ ˈbal-ˌiz-əm How to pronounce ballism (audio) \
variants: or ballismus \ bə-​ˈliz-​məs How to pronounce ballismus (audio) \
plural ballisms or ballismuses

Medical Definition of ballism

: the abnormal swinging jerking movements sometimes seen in chorea

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a usually brief trip or an expedition

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