convulsion
noun /kənˈvʌlʃn/
  /kənˈvʌlʃn/
[usually plural] (rather formal)- a sudden shaking movement of the body that cannot be controlled synonym fit
- The child went into convulsions.
 - in convulsions He fell to the ground in convulsions.
 
Extra Examples- The patient lost consciousness and went into convulsions.
 - He felt a sudden convulsion of fear at the pit of his stomach.
 - She started to have convulsions again.
 - The drug can cause paranoia, memory loss and convulsions.
 
Oxford Collocations Dictionaryadjective- violent
 - sudden
 
- go into
 - have
 - suffer
 - …
 
 - a sudden important change that happens to a country or an organization synonym upheaval
- political convulsions threatening the stability of new democracies
 
 
Word Originmid 16th cent. (originally in the sense ‘cramp, spasm’): from Latin convulsio(n-), from the verb convellere, from con- ‘together’ + vellere ‘to pull’.