narcolepsy
/ˈnɑːkəlepsɪ/noun
mass noun
- Medicine a condition characterized by an extreme tendency to fall asleep whenever in relaxing surroundings【医】发作性睡（眠）病。
派生词
narcoleptic
adjective & noun词源
late 19th cent.: from Greek narkē 'numbness', on the pattern of epilepsy.