A convulsion; newer term for grand mal or major motor seizure; characterized by loss of consciousness, falling, stiffening, and jerking; electrical discharge involves all or most of the brain.
a seizure marked by loss of consciousness, falling, stiffening, and jerking. This is the hallmark of a generalized motor seizure, which used to be called a "grand mal seizure."
A type of seizure which causes a sudden loss of consciousness followed immediately by a generalized convulsion in which extremities become stiff, then jerk rhythmically. Formerly know as grand mal seizure.
A tonic-clonic seizure begins with the tonic phase, which often involves a fall to the floor, stiffening of the limbs, and clenching of teeth. This is followed by the clonic phase, which presents itself as the violent rhythmic jerking of the limbs and torso. Previously know as grand mal seizure.