grand mal
noun /ˌɡrɒ̃ ˈmæl/
/ˌɡræn ˈmɑːl/, /ˌɡræn ˈmæl/
[uncountable] (from French, medical- a serious form of epilepsy in which somebody becomes unconscious for fairly long periods
compare petit mal(癫痫)大发作 词源late 19th cent.: from French, literally ‘great sickness’.