Status epilepticus (SE) is a life-threatening condition in which the brain is in a state of persistent seizure. Definitions vary, but currently it is defined as one continuous, unremitting seizure lasting longer than five minutes, or recurrent seizures without regaining consciousness between seizures for greater than five minutes. Previous definit...
A series of rapidly repeated seizures without regaining consciousness between them. ... (12 Dec 1998) ... 
(stat´әs ep″ĭ-lep´tĭ-kәs) rapid succession of epileptic spasms without intervals of consciousness; brain damage may result.
Type: Term Definitions: 1. repeated seizure or a seizure prolonged for at least 30 minutes; may be convulsive (tonic-clonic), nonconvulsive (absence or complex partial), partial (epilepsia partialis continuans), or subclinical (electrographic status epilepticus).
Status epilepticus: An epileptic seizure that lasts more than 30 minutes; a constant or near-constant state of having seizures. Status epilepticus is a health crisis, and requires immediate treatment. See also epilepsy, seizure disorders.
[n] - a condition in which there are continuing attacks of epilepsy without intervals of consciousness
a life-threatening succession of epileptic seizures 
noun a condition in which there are continuing attacks of epilepsy without intervals of consciousness; can lead to brain damage and death