J

n. (Law) Vain boasting or assertions repeated to the prejudice of another's right; false claim. (Med.) A frequent tossing or moving of the body; restlessness, as in delirium. Any involuntary convulsive muscular movement. Jactitation of marriage (Eng. Eccl. Law), a giving out or boasting by a party that he or she is married to another, whereby a common reputation of their matrimony may ensue.