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convulse

con·vulse [ kən vúlss ] (past and past participle con·vulsed, present participle con·vuls·ing, 3rd person present singular con·vuls·es)


verb 
Definition:
 
1. transitive and intransitive verb shake uncontrollably: to jerk or shake violently and uncontrollably, or make a muscle or body part go into a repetitive spasm

2. transitive verb cause to shake: to make somebody shake with laughter or a strong emotion ( often passive )
convulsed with panic

3. transitive verb disrupt something: to cause extreme disruption or disturbance in something
Problems in the Asian economies convulsed the New York markets.

[Mid-17th century. < Latin convuls-, past participle of convellere "pull violently" < vellere "pull"]
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