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The definition of convulsion

3 Definitions of: convulsion

1. noun, a violent involuntary contraction of a muscle or muscles
2. noun, a violent upheaval, disturbance, or agitation, esp a social one
3. noun, uncontrollable laughter
4. Show me some examples of this word: convulsion
5. Show me the etymology of the word: convulsion

Synonyms:	spasm, cramp, commotion, contraction, fit, shake, seizure, tremor, contortion, paroxysm	And more...

From Collins