Older term for epilepsy characterised by generalised tonic-clonic seizure. ... (05 Mar 2000) ... 
a type involving loss of consciousness with generalized tonic-clonic seizures.
Type: Term Definitions: 1. older term for epilepsy characterized by generalized tonic-clonic seizure.
Grand mal epilepsy: See: Grand mal.
[n] - epilepsy in which the attack involves loss of consciousness and tonic spasms of the musculature followed by generalized jerking