convulsion

convulsion [ kuh'n-VUHL-shuh'n ]
[ noun ]

MEANING :
1. contortion of the body caused by violent, involuntary muscular contractions
2. a commotion or violent disturbance
3. a paroxysm or an uncontrollable fit of laughter

USAGE EXAMPLE 1 :
The electrician was lucky to have survived the convulsions caused by the electric shock.

USAGE EXAMPLE 2 :
It subsequently emerged that he had suffered a convulsion but had been cleared to play in the match in Paris.