period рдХреНрдпрд╛ рд╣реИрдВ? period рдХреНрдпрд╛ рд╣реИрдВ? An interval of time characterized by the occurrence of a certain condition, event, or phenomenon: a period of economic prosperity. An interval of time characterized by the prevalence of a specified culture, ideology, or technology: artifacts of the pre-Columbian period. An interval regarded as a distinct evolutionary or developmental phase: Picasso's early career is divided into his blue period and rose period. Geology A unit of time, longer than an epoch and shorter than an era.Any of various arbitrary units of time, especially:Any of the divisions of the academic day.Sports & Games A division of the playing time of a game.Physics & Astronomy The time interval between two successive occurrences of a recurrent event or phases of an event; a cycle: the period of a satellite's orbit. An instance or occurrence of menstruation.A point or portion of time at which something is ended; a completion or conclusion.The full pause at the end of a spoken sentence.A punctuation mark ( . ) indicating a full stop, placed at the end of declarative sentences and other statements thought to be complete, and after many abbreviations.A sentence of several carefully balanced clauses in formal writing.A metrical unit of quantitative verse consisting of two or more cola.An analogous unit or division of classical Greek or Latin prose.Music A group of two or more phrases within a composition, often made up of 8 or 16 measures and terminating with a cadence.Mathematics The least interval in the range of the independent variable of a periodic function of a real variable in which all possible values of the dependent variable are assumed.Mathematics A group of digits separated by commas in a written number.Mathematics The number of digits that repeat in a repeating decimal. For example, 1/7 = 0.142857142857 . . . has a six-digit period.Chemistry A sequence of elements arranged in order of increasing atomic number and forming one of the horizontal rows in the periodic table.Of, belonging to, or representing a certain historical age or time: a period piece; period furniture. Used to emphasize finality, as when expressing a decision or an opinion: You're not going to the movies tonight, period!