舞蹈病特別是在臂、腿及臉部出現的無法控制的、無規律的肌肉運動為癥狀的各種神經系統紊亂
Any of various disorders of the nervous system marked by uncontrollable and irregular muscle movements, especially of the arms, legs, and face.
不規律的在過程上或行為上無規律的;不可預測的
Irregular in course or behavior; unpredictable.