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Definitions for Period

[1] a rather large interval of time that is meaningful in the life of a person, in history, etc., because of its particular characteristics: a period of illness; a period of great profitability for a company; a period of social unrest in Germany.
[2] any specified division or portion of time: poetry of the period from 1603 to 1660.
[3] a round of time or series of years by which time is measured.
[4] a round of time marked by the recurrence of some phenomenon or occupied by some recurring process or action.
[5] the point of completion of a round of time or of the time during which something lasts or happens.
[6] Education . a specific length of time during school hours that a student spends in a classroom, laboratory, etc., or has free.
[7] any of the parts of equal length into which a game is divided.
[8] the time during which something runs its course.
[9] the present time.
[10] the point or character (.) used to mark the end of a declarative sentence, indicate an abbreviation, etc.; full stop.
[11] a full pause, as is made at the end of a complete sentence; full stop.
[12] a sentence, especially a well-balanced, impressive sentence: the stately periods of Churchill.
[13] a periodic sentence.
[14] an occurrence of menstruation.
[15] a time of the month during which menstruation occurs.
[16] Geology . the basic unit of geologic time, during which a standard rock system is formed: comprising two or more epochs and included with other periods in an era.
[17] Physics . the duration of one complete cycle of a wave or oscillation; the reciprocal of the frequency.
[18] Music . a division of a composition, usually a passage of eight or sixteen measures, complete or satisfactory in itself, commonly consisting of two or more contrasted or complementary phrases ending with a conclusive cadence; sentence(def 3) .
[19] Astronomy . Also called period of rotation . the time in which a body rotates once on its axis. Also called period of revolution . the time in which a planet or satellite revolves once about its primary.
[20] Mathematics . See under periodic1(def 5) .
[21] Classical Prosody . a group of two or more cola.
[22] noting, pertaining to, evocative of, imitating, or representing a historical period or the styles current during a specific period of history: period costumes; a period play.
[23] (used by a speaker or writer to indicate that a decision is irrevocable or that a point is no longer discussable): I forbid you to go, period.
[24] recurring at intervals of time: periodic revivals of an interest in handicrafts.
[25] occurring or appearing at regular intervals: periodic visits by doctors to the village.
[26] repeated at irregular intervals; intermittent: periodic outbreaks of the disease.
[27] Physics . recurring at equal intervals of time.
[28] Mathematics . (of a function) having a graph that repeats after a fixed interval (period) of the independent variable.
[29] Astronomy . characterized by a series of successive circuits or revolutions, as the motion of a planet or satellite. of or relating to a period, as of the revolution of a heavenly body.
[30] pertaining to or characterized by rhetorical periods, or periodic sentences.
[31] a portion of time of indefinable length he spent a period away from home
[32] a portion of time specified in some way the Arthurian period ; Picasso's blue period (as modifier ) period costume
[33] a nontechnical name for an occurrence of menstruation
[34] geology a unit of geological time during which a system of rocks is formed the Jurassic period
[35] a division of time, esp of the academic day
[36] physics maths the time taken to complete one cycle of a regularly recurring phenomenon; the reciprocal of frequency Symbol: T an interval in which the values of a periodic function follow a certain pattern that is duplicated over successive intervals sin x = sin ( x + 2π ) , where 2π is the period
[37] astronomy the time required by a body to make one complete rotation on its axis the time interval between two successive maxima or minima of light variation of a variable star
[38] chem one of the horizontal rows of elements in the periodic table. Each period starts with an alkali metal and ends with a rare gas Compare group (def. 11)
[39] Also called: full stop the punctuation mark (.) used at the end of a sentence that is not a question or exclamation, after abbreviations, etc
[40] a complete sentence, esp a complex one with several clauses
[41] Also called: sentence music a passage or division of a piece of music, usually consisting of two or more contrasting or complementary musical phrases and ending on a cadence
[42] (in classical prosody) a unit consisting of two or more cola
[43] rare a completion or end
[44] happening or recurring at intervals; intermittent
[45] of, relating to, or resembling a period
[46] having or occurring in repeated periods or cycles

Words related to Period

term, span, stretch, season, age, course, era, time, duration, stage, date, cycle, end, while, spell, space, generation, interval, epoch, measure

Words nearby Period

perineum, perineural anesthesia, perineuritis, perineurium, perinuclear, period, period drama, period of revolution, period piece, period-luminosity relation, periodate

Origin of Period

ic11635–45; < Latin periodicus < Greek periodikós. See period, -ic

Words that may be confused with Period

icperiodic, periodical

Other words from Period

sub·pe·ri·od , noun
pe·ri·od·i·cal·ly , adverb
qua·si-pe·ri·od·i·cal·ly , adverb

Word origin for Period

C14 peryod, from Latin periodus, from Greek periodos circuit, from peri- + hodos way

Synonyms for Period

age, course, cycle, date, duration, era, season, span, stage, stretch, term, time, aeon, days, epoch, generation, interval, measure, space, spell, while, years