Definition

• n. - A portion of time as limited and determined by some recurring phenomenon, as by the completion of a revolution of one of the heavenly bodies; a division of time, as a series of years, months, or days, in which something is completed, and ready to recommence and go on in the same order; as, the period of the sun, or the earth, or a comet.
• 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.
• n. - One of the great divisions of geological time; as, the Tertiary period; the Glacial period. See the Chart of Geology.
• n. - The termination or completion of a revolution, cycle, series of events, single event, or act; hence, a limit; a bound; an end; a conclusion.
• n. - A complete sentence, from one full stop to another; esp., a well-proportioned, harmonious sentence.
• n. - The punctuation point [.] that marks the end of a complete sentence, or of an abbreviated word.