Definition of period

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Period (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..

Lern More About Period

Hypnocyst :: Hypnocyst (n.) A cyst in which some unicellular organisms temporarily inclose themselves, from which they emerge unchanged, after a period of drought or deficiency of food. In some instances, a process of spore formation seems to occur within such cysts..
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..
Roll :: Roll (v. i.) To perform a periodical revolution; to move onward as with a revolution; as, the rolling year; ages roll away..
Subsequent :: Subsequent (a.) Following in time; coming or being after something else at any time, indefinitely; as, subsequent events; subsequent ages or years; a period long subsequent to the foundation of Rome..
Drachma :: Drachma (n.) A silver coin among the ancient Greeks, having a different value in different States and at different periods. The average value of the Attic drachma is computed to have been about 19 cents..
Ever :: Ever (adv.) At any time; at any period or point of time.
Menstrual :: Menstrual (a.) Of or pertaining to the menses; as, menstrual discharges; the menstrual period..
Society :: Society (n.) The persons, collectively considered, who live in any region or at any period; any community of individuals who are united together by a common bond of nearness or intercourse; those who recognize each other as associates, friends, and acquaintances..
Dipsomania :: Dipsomania (n.) A morbid an uncontrollable craving (often periodic) for drink, esp. for alcoholic liquors; also improperly used to denote acute and chronic alcoholism..
Maccabees :: Maccabees (n. pl.) The name given later times to the Asmonaeans, a family of Jewish patriots, who headed a religious revolt in the reign of Antiochus IV., 168-161 B. C., which led to a period of freedom for Israel..
Increase :: Increase (v. i.) The period of increasing light, or luminous phase; the waxing; -- said of the moon..
Metrorrhagia :: Metrorrhagia (n.) Profuse bleeding from the womb, esp. such as does not occur at the menstrual period..
Literature :: Literature (n.) The collective body of literary productions, embracing the entire results of knowledge and fancy preserved in writing; also, the whole body of literary productions or writings upon a given subject, or in reference to a particular science or branch of knowledge, or of a given country or period; as, the literature of Biblical criticism; the literature of chemistry..
Semicentennial :: Semicentennial (a.) Of or pertaining to half of a century, or a period of fifty years; as, a semicentennial commemoration..
Thermetograph :: Thermetograph (n.) A self-registering thermometer, especially one that registers the maximum and minimum during long periods..
Intermission :: Intermission (n.) Cessation for a time; an intervening period of time; an interval; a temporary pause; as, to labor without intermission; an intermission of ten minutes..
Limuloidea :: Limuloidea (n. pl.) An order of Merostomata, including among living animals the genus Limulus, with various allied fossil genera, mostly of the Carboniferous period. Called also Xiphosura..
Chronometry :: Chronometry (n.) The art of measuring time; the measuring of time by periods or divisions.
Lunation :: Lunation (n.) The period of a synodic revolution of the moon, or the time from one new moon to the next; varying in length, at different times, from about 29/ to 29/ days, the average length being 29 d., 12h., 44m., 2.9s..
Niagara Period :: Niagara period () A subdivision or the American Upper Silurian system, embracing the Medina, Clinton, and Niagara epoch. The rocks of the Niagara epoch, mostly limestones, are extensively distributed, and at Niagara Falls consist of about eighty feet of shale supporting a greater thickness of limestone, which is gradually undermined by the removal of the shale. See Chart of Geology..
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