n. The act of continuing, prolonging, or protracting; continuance in time or duration; a lengthening out to a distant time; prolongation; the delaying of action upon anything.n. The act of proroguing; more specifically, the right which belongs to the British crown, exercised by its ministers, of terminating a session of Parliament; also, the exercise of that right.n. In astral., the exercise of the office of prorogator.