vuls-, vell- +

(Latin: to pull, pulling; to tear, tearing, tearing away; to twitch, twitching)

convulsively (adverb)
Descriptive of violent shaking or agitation.
convulsiveness (s) (noun)
Resembling a convulsion in being sudden and violent.
devellicate, devellicates; devellicated; devellicating (verbs)
1. To pull into pieces.
2. To detach, to rip apart.
divulsion (s) (noun)
1. Separation or pulling apart by force.
2. The forcible dilation of the walls of a cavity or canal.
electroconvulsive (adjective)
1. Having to do with convulsions produced by an electroshock.
2. Referring to a convulsive response to an electrical stimulation.
electroconvulsive therapy management (s) (noun)
A nursing intervention from the Nursing Interventions Classification (NIC) defined as assisting with the safe and efficient provision of electroconvulsive therapy in the treatment of psychiatric illness.
electroconvulsive therapy, electroconvulsive treatment, ECT (s); electroconvulsive therapies, electroconvulsive treatments, ECTs (pl) (nouns)
1. The induction of a brief convulsion by passing an electric current through the brain for the treatment of affective disorders; especially, in patients resistant to psychoactive-drug therapy.

Electroconvulsive therapy is primarily used when rapid definitive response is required for either medical or psychiatric reasons; such as, for a patient who is extremely suicidal and when the risks of other treatments outweigh the risk of ECT.

2. The use of an electric shock to produce convulsions.

There is a use for this type of treatment with specific types of mental illness; especially, if acute depression and suicidal intentions are present.

3. The use of controlled, measured doses of electric shock to induce convulsions.

Such convulsions can sometimes treat clinical depressions which can not be treated with medication.

febrille convulsion (s), febrille convulsions (pl) (nouns)
A brief seizure, lasting less than fifteen minutes, seen in a neurologically normal infant or young child, associated with fever.
hysteric convulsion, hysteroid convulsion (s); hysteric convulsions, hysteroid convulsions (pl) (nouns)
Convulsions resulting from conversion disorder (for which hysteria is an older form).
immediate post-traumatic convulsion (s), immediate post-traumatic convulsions (pl) (nouns)
Sudden, violent movements, of the body that start soon after a severe injury: "Immediate post-traumatic convulsions result right after certain anxiety disorders have developed after exposures to some terrifying events or ordeals in which serious physical injuries have occurred."
mimetic convulsion (s), mimetic convulsions (pl) (nouns)
A facial muscle spasm.
revulsion (s), revulsions (pl) (nouns)
1. A sudden violent feeling of disgust.
2. A strong pulling or drawing back; withdrawal.
3. A sudden reaction; a sudden and complete change; applied to the feelings.
4. The act of turning or diverting any disease from one part of the body to another area.

It resembles derivation (drawing of humors or fluids from one part of the body to another, to relieve or to decrease a morbid process); however, it is usually applied to a more active form of counter irritation.

revulsive (s), revulsives (pl) (nouns)
An agent causing revulsion or a strong pulling or drawing back; a withdrawal; as a counter irritant or any substance that causes inflammation following an immediate, prolonged, or repeated contact with skin or mucous membranes.
revulsively (adverb)
1. A descriptive term for the act or an instance of drawing back or recoiling from something.
2. A reference to the diversion of disease or congestion from one part of the body to another part by cupping, counterirritants, etc.
tonic convulsion, tetanic convulsion (s); tonic convulsions, tetanic convulsions (pl) (nouns)
Convulsion with sustained muscle contraction.