usage: "death put a period to his endeavors"; "a change soon put a period to my tranquility"
The monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause."the women were sickly and subject to excessive menstruation"; "a woman does not take the gout unless her menses be stopped-Hippocrates; "the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females-Aristotle
(n.) A stated and recurring interval of time; more generally, an interval of time specified or left indefinite; a certain series of years, months, days or the like; a time; a cycle; an age; an epoch; as, the period of the Roman republic.