臨睡肌躍症 [临－－跃－]

Jyutping lam4 seoi6 gei1 joek3 zing3
Pinyin lín shuì jī yuè zhèng

Definitions (Wiktionary)
  1. noun
    hypnic jerk
    (syn.) 入睡抽动, 入睡抽動