Definition of period
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Period (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..
Lern More About Period
Periodical ::
Periodical (a.) Happening, by revolution, at a stated time; returning regularly, after a certain period of time; acting, happening, or appearing, at fixed intervals; recurring; as, periodical epidemics..
Antiperiodic ::
Antiperiodic (n.) A remedy possessing the property of preventing the return of periodic paroxysms, or exacerbations, of disease, as in intermittent fevers..
Anatropous ::
Anatropous (a.) Having the ovule inverted at an early period in its development, so that the chalaza is as the apparent apex; -- opposed to orthotropous..
Month ::
Month (n.) One of the twelve portions into which the year is divided; the twelfth part of a year, corresponding nearly to the length of a synodic revolution of the moon, -- whence the name. In popular use, a period of four weeks is often called a month..
Orbit ::
Orbit (n.) The path described by a heavenly body in its periodical revolution around another body; as, the orbit of Jupiter, of the earth, of the moon..
Period ::
Period (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..
Revolution ::
Revolution (n.) The space measured by the regular return of a revolving body; the period made by the regular recurrence of a measure of time, or by a succession of similar events..
Rh/tic ::
Rh/tic (a.) Pertaining to, or of the same horizon as, certain Mesozoic strata of the Rhetian Alps. These strata are regarded as closing the Triassic period. See the Chart of Geology..
Periodical ::
Periodical (n.) A magazine or other publication which appears at stated or regular intervals.
Scandium ::
Scandium (n.) A rare metallic element of the boron group, whose existence was predicted under the provisional name ekaboron by means of the periodic law, and subsequently discovered by spectrum analysis in certain rare Scandinavian minerals (euxenite and gadolinite). It has not yet been isolated. Symbol Sc. Atomic weight 44..
Undecennial ::
Undecennial (a.) Occurring or observed every eleventh year; belonging to, or continuing, a period of eleven years; undecennary; as, an undecennial festival..
Millennium ::
Millennium (n.) A thousand years; especially, the thousand years mentioned in the twentieth chapter in the twentieth chapter of Revelation, during which holiness is to be triumphant throughout the world. Some believe that, during this period, Christ will reign on earth in person with his saints..
Evermore ::
Evermore (adv.) During eternity; always; forever; for an indefinite period; at all times; -- often used substantively with for.
Serial ::
Serial (n.) A publication appearing in a series or succession of part; a tale, or other writing, published in successive numbers of a periodical..
Nilometer ::
Nilometer (n.) An instrument for measuring the rise of water in the Nile during its periodical flood.
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