vuls-, vell- +

1. A drug that prevents or relieves convulsions.
2. A reference to a substance or procedure that prevents or reduces the severity of epileptic or other convulsive seizures.
3. Any drug that depresses the central nervous system may be used for its anticonvulsant effect including narcotics and sedatives.

They have the undesirable effect of depressing all central nervous system (CNS) functions.

Relieving or preventing convulsion.

Relating to abnormal neuromuscular activity characterized by rapidly alternating muscle contraction and relaxation in which the contractions are intermittent and the muscles alternately contracting and relaxing.

A febrile convulsion that is prolonged; that is, longer than fifteen minutes' duratiom or is associated with focal neurological deficits.

1. Causing or producing convulsions.
2. An agent, such as a drug, that can cause violent involuntary muscle contractions.

1. To shake or to agitate violently: "There were tremors that convulsed the countryside."
2. To affect with irregular and involuntary muscular contractions; such as, to throw into convulsions.
3. To cause to shake with laughter or strong emotion.
4. To move or to stir about violently.

1. A violent shaking of the body or limbs caused by uncontrollable muscle contractions, which can be a symptom of brain disorders and other conditions.
2. An uncontrolled fit, as of laughter.
3. Violent turmoil: "The market convulsions of the last year have shaken the global markets."
4. Etymology: from Latin convulsionem, from the past participle stem of convellere, "to tear loose"; from com-, "together" + vellere, "to pluck, to pull violently".

A reference to convulsions.

Descriptive of violent shaking or agitation.

Resembling a convulsion in being sudden and violent.

Incoordinate contraction of muscles in a convulsive manner.

A sudden onset of a disease, characterized by convulsions, palpitations, and other symptoms which is sometimes applied to an attack of an epileptic disorder.

A treatment in which convulsions are induced by passing a low-voltage alternating electric current through the brain.

The use of such a technique is used in psychology, or psychiatry, to treat severe psychiatric disorders.

A disorder of the facial nerve, causing involuntary spasmodic contractions of the facial muscles supplied by that nerve.

1. Separation or pulling apart by force.
2. The forcible dilation of the walls of a cavity or canal.