spasm has definitions from the fields of medicine,pathology
1
[ noun ] (medicine) a painful and involuntary muscular contraction

Synonyms

cramp muscle_spasm

Used in print

(S. J. Perelman, The Rising Gorge. New York:...)

In_time , these minor manifestations will multiply and effloresce , riddling you with frambesia , the king's_evil , sheep_rot , and clonic spasm , until your very existence becomes a burden and you cry_out_for release .

2
[ noun ] (pathology) sudden constriction of a hollow organ (as a blood vessel)
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