seizure

n. sudden attack of disease (such as epilepsy); expropriation, confiscation; instance of taking control

A seizure is a temporary abnormal electro-physiologic phenomenon of the brain, resulting in abnormal synchronization of electrical neuronal activity. It can manifest as an alteration in mental state, tonic or clonic movements, convulsions, and various other psychic symptoms (such as déjà vu or jamais vu). It is caused by a temporary abnormal electrical activity of a group of brain cells. The medical syndrome of recurrent, unprovoked seizures is termed epilepsy, but some seizures may occur in people who do not have epilepsy.
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Seizure /sei·zure/ 1. the sudden attack or recurrence of a disease. 2. a single episode of epilepsy, often named for the type it represents. [more]Seizure - Community and Resources

Noun
1. a sudden occurrence (or recurrence) of a disease; "he suffered an epileptic seizure"
(synonym) ictus, raptus
(hypernym) attack
(hyponym) convulsion
2. the act of forcibly dispossessing an owner of property
(synonym) capture, gaining control
(hypernym) acquiring, getting
(hyponym) usurpation
(derivation) appropriate, capture, seize, conquer
3. the act of taking of a person by force
(synonym) capture
(hypernym) felony
(hyponym) abduction
(derivation) seize
4. the taking possession of something by legal process
(hypernym) appropriation
(hyponym) confiscation, arrogation
(derivation) impound, attach, sequester, confiscate, seize

(n.)
The act of seizing, or the state of being seized; sudden and violent grasp or gripe; a taking into possession; as, the seizure of a thief, a property, a throne, etc.
  

(n.)
That which is seized, or taken possession of; a thing laid hold of, or possessed.
  

(n.)
Retention within one's grasp or power; hold; possession; ownership.