grand mal
/ˈgrɒŋˈmɑːl/noun
mass noun
1- a serious form of epilepsy with muscle spasms and prolonged loss of consciousness癫痫大发作（伴有肌肉痉挛和长时间失去知觉）。比较PETIT MAL.
1.1
- count noun an epileptic fit of this kind癫痫大发作。
词源
late 19th cent.: from French, literally'great sickness'.