grand mal is a noun meaning "epilepsy in which the attacks involve loss of consciousness and tonic spasms of the musculature followed by generalized jerking". It carries 2 recorded senses.
epilepsy in which the attacks involve loss of consciousness and tonic spasms of the musculature followed by generalized jerking
a seizure during which the patient becomes unconscious and has convulsions over the entire body
Definitions, synonyms and semantic relations for grand mal come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.