n. spasm, convulsie, acces, criză

n. spasm, jerk, twinge, pang, grimace

a painful and involuntary muscular contraction: trismus, opisthotonos, cramp, twitch, charley horse, vellication, kink, muscle spasm, crick, writer's cramp, graphospasm, twitching, rick, myoclonus, charley-horse, blepharospasm, tenesmus, wrick, symptom
(pathology) sudden constriction of a hollow organ (as a blood vessel): retch, laryngismus, cardiospasm, bronchospasm, heave, constriction