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Dictionary

con•vul•sion

Pronunciation: (kun-vul'shun), [key]
—n.
1. contortion of the body caused by violent, involuntary muscular contractions of the extremities, trunk, and head.
2. violent agitation or disturbance; commotion.
3. an outburst of great, uncontrollable laughter.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

convulse

convulsionary

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