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 malWord Originlate 19th cent.: from French, literally ‘great sickness’.
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grand mal