Parkinson’s disease
noun /ˈpɑːkɪnsnz dɪziːz/
  /ˈpɑːrkɪnsnz dɪziːz/
(also parkinsonism 
 [uncountable] /ˈpɑːkɪnsənɪzəm/
  /ˈpɑːrkɪnsənɪzəm/
)- a disease of the nervous system that gets worse over a period of time and causes the muscles to become weak and the arms and legs to shake帕金森病(神经系统疾病,能致肌肉无力和四肢颤抖) 词源late 19th cent.: named after James Parkinson (1755–1824), English surgeon.