
1) Spasms
Found on
https://www.crosswordclues.com/clue/convulsions

Severe contortion of the body caused by violent, involuntary muscular contractions of the extremities, trunk, and head.
Found on
http://mckechnies.net/family/_references/medical.htm

Seizures manifested by discontinuous involuntary skeletal muscular contractions, either brief contractions repeated at short intervals or longer ones interrupted by intervals of muscular relaxation. ... (12 Dec 1998) ...
Found on
http://www.encyclo.co.uk/local/20973

Severe contortion of the body caused by violent, involuntary muscular contractions of the extremitie
Found on
http://www.encyclo.co.uk/local/22412

Severe contortion of the body caused by violent, involuntary muscular contractions of the extremities, trunk, and head. See epilepsy.
Found on
http://www.olivetreegenealogy.com/misc/disease.shtml

Convulsions are involuntary contractions of muscles which are usually under conscious control.
Found on
http://www.probertencyclopaedia.com/browse/EC.HTM

Seizures.
Found on
http://www.thehorse.com/Glossary.xhtml?L=C

violent, involuntary muscular contractions of the extremities, trunk, and head. An involuntary contraction of the fibres of the muscles, whereby the body and limbs are preternaturally distorted. See also epilepsy
Found on
http://www.thornber.net/medicine/html/medgloss.html

Strong and involuntary contraction of the muscles.
Found on
https://www.encyclo.co.uk/local/20189

Also known as seizures, fits or attacks. May be a side effect of medications or drugs.
Found on
https://www.encyclo.co.uk/local/20528
No exact match found.