"' Jactitation "'is an archaic medical term ( derived, perhaps as a corruption, from " jactation ", meaning a restless tossing and turning of the body, and derived itself from Latin " jactare " or " jacere ", both meaning " to throw or hurl " ) referring to the involuntary spasm of a limb, muscle, or muscle group.
परिभाषा
(pathology) extremely restless tossing and twitching usually by a person with a severe illness पर्याय: jactitation,