<p><strong>Noun</strong></p><ul><li>any of several diseases of the nervous system characterized by jerky, involuntary movements, chiefly of the face and extremities</li><li>Also called St. Vitus's dance</li><li>such a disease occurring chiefly in children and associated with rheumatic fever</li><li>a disease of the central nervous system caused by bacterial or organic degeneration, most common in dogs following canine distemper, characterized by irregular, jerky, involuntary muscular movements</li></ul>