chorea /kôrē″ə/ [Gk, choreia, dance] , a condition characterized by involuntary purposeless, rapid motions, as flexing and extending of the fingers, raising and lowering of the shoulders, or grimacing. The movements often appear to be well coordinated. In some forms the person is also irritable, emotionally unstable, physically weak, and restless. See also chorea gravidarum, Huntington’s disease, Sydenham’s chorea. −choreic, adj.
