period

period

The period (also known as a full stop, especially in British English) is a punctuation mark ( . ) primarily used to indicate the end of a sentence. It appears as a single dot on the bottom line of the text, and it comes immediately after the last word of the sentence without a space.Continue reading...

pe·ri·od

P0194000 (pîr′ē-əd)n.1. An interval of time characterized by the occurrence of a certain condition, event, or phenomenon: a period of economic prosperity.2. An interval of time characterized by the prevalence of a specified culture, ideology, or technology: artifacts of the pre-Columbian period.3. An interval regarded as a distinct evolutionary or developmental phase: Picasso's early career is divided into his blue period and rose period.4. Geology A unit of time, longer than an epoch and shorter than an era.5. Any of various arbitrary units of time, especially:a. Any of the divisions of the academic day.b. Sports & Games A division of the playing time of a game.6. 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.7. See menstrual period.8. A point or portion of time at which something is ended; a completion or conclusion.9. 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.10. The full pause at the end of a spoken sentence.11. A sentence of several carefully balanced clauses in formal writing.12. a. A metrical unit of quantitative verse consisting of two or more cola.b. An analogous unit or division of classical Greek or Latin prose.13. Music A group of two or more phrases within a composition, often made up of 8 or 16 measures and terminating with a cadence.14. Mathematics a. 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.b. A group of digits separated by commas in a written number.c. The number of digits that repeat in a repeating decimal. For example, ¹/₇ = 0.142857142857 ... has a six-digit period.15. Chemistry A sequence of elements arranged in order of increasing atomic number and forming one of the horizontal rows in the periodic table.adj. Of, belonging to, or representing a certain historical age or time: a period piece; period furniture.interj. Used to emphasize finality, as when expressing a decision or an opinion: You're not going to the movies tonight, period!

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[Middle English periode, from Old French, from Medieval Latin periodus, from Latin perihodos, rhetorical period, from Greek periodos, circuit : peri-, peri- + hodos, way.]Word History: Many may have wondered why the word period has the sense "punctuation mark ( . )" as well as several senses having to do with time. The answer to this question lies in one of the senses of the Greek word periodos from which our word is descended. Periodos, made up of peri-, "around," and hodos, "way," in addition to meaning such things as "going around, way around, going around in a circle, circuit," and with regard to time, "cycle or period of time," referred in rhetoric to "a group of words organically related in grammar and sense." The Greek word was adopted into Latin as perihodos, which in the Medieval Latin period acquired a new sense related to its use in rhetoric, "a punctuation mark used at the end of a rhetorical period." This sense is not recorded in English until the late 1500s, but the word had already entered Middle English in the 1400s as a borrowing from Old French in the sense "a cycle of recurrence of a disease."

period

(ˈpɪərɪəd) n1. a portion of time of indefinable length: he spent a period away from home. 2. a. a portion of time specified in some way: the Arthurian period; Picasso's blue period. b. (as modifier): period costume. 3. (Physiology) a nontechnical name for an occurrence of menstruation4. (Geological Science) geology a unit of geological time during which a system of rocks is formed: the Jurassic period. 5. (Education) a division of time, esp of the academic day6. (General Physics) physics maths a. the time taken to complete one cycle of a regularly recurring phenomenon; the reciprocal of frequency. Symbol: T b. 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. 7. (Astronomy) astronomy a. the time required by a body to make one complete rotation on its axisb. the time interval between two successive maxima or minima of light variation of a variable star8. (Chemistry) 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 group¹¹9. (Printing, Lithography & Bookbinding) Also called: full stop the punctuation mark (.) used at the end of a sentence that is not a question or exclamation, after abbreviations, etc10. (Literary & Literary Critical Terms) a complete sentence, esp a complex one with several clauses11. (Music, other) music Also called: sentence a passage or division of a piece of music, usually consisting of two or more contrasting or complementary musical phrases and ending on a cadence12. (Poetry) (in classical prosody) a unit consisting of two or more cola13. rare a completion or end[C14 peryod, from Latin periodus, from Greek periodos circuit, from peri- + hodos way]

pe•ri•od

(ˈpɪər i əd)

n. 1. an extent of time that is meaningful in the life of a person, in history, etc.: a period of illness; a period of social unrest. 2. a specific division or portion of time: the postwar period. 3. a round of time, esp. as marked by the recurrence of some phenomenon: the rainy period. 4. any of the parts of equal length into which a particular thing, as a sports contest, is divided. 5. the time during which something is completed or runs its course: the gestation period. 6. the point or character (.) used esp. to mark the end of a declarative sentence or to indicate an abbreviation; full stop. 7. a full pause, as is made at the end of a complete sentence; full stop. 8. a sentence, esp. a well-balanced, impressive sentence. 9. periodic sentence. 10. a. an occurrence of menstruation. b. a time of the month during which menstruation occurs. 11. 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. 12. Physics. the duration of one complete cycle of a wave or oscillation; the reciprocal of the frequency. 13. a division of a musical composition commonly consisting of two or more contrasted or complementary phrases ending with a cadence. 14. Astron. a. the time in which a body rotates once on its axis. b. the time in which a planet or satellite revolves once about its primary. 15. (in classical prosody) a group of two or more cola. adj. 16. noting or pertaining to a historical period. interj. 17. (used to indicate that a decision is final): I forbid you to go, period. [1375–1425; < Middle French < Medieval Latin periodus, Latin < Greek períodos circuit, period of time, period in rhetoric]

pe·ri·od

(pĭr′ē-əd)1. A division of geologic time, longer than an epoch and shorter than an era.2. The time it takes for a regularly recurring action or event to be repeated; a cycle.3. An instance or occurrence of menstruation.4. Chemistry In the Periodic Table, any of the seven horizontal rows that contain elements arranged in order of increasing atomic number. All the elements in a particular period have the same number of electron shells in their atoms. See Periodic Table.

period

The time it takes for a satellite to complete one orbit around the earth. As a rule of thumb, satellites with periods of 87.5 minutes are on the verge of reentry.

period

1. A punctuation mark (.) that shows the end of a sentence or follows an abbreviation.2. A geological time unit within an era.

Thesaurus

Noun	1.	period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"period of time, time periodfundamental measure, fundamental quantity - one of the four quantities that are the basis of systems of measurementtest period, trial period - a period of time during which someone or something is testedtime frame - a time period during which something occurs or is expected to occur; "an agreement can be reached in a reasonably short time frame"hours - an indefinite period of time; "they talked for hours"downtime - a period of time when something (as a machine or factory) is not operating (especially as a result of malfunctions)uptime - a period of time when something (as a machine or factory) is functioning and available for usework time - a time period when you are required to worktime off - a time period when you are not required to work; "he requested time off to attend his grandmother's funeral"bout - a period of illness; "a bout of fever"; "a bout of depression"hospitalization - a period of time when you are confined to a hospital; "now they try to shorten the patient's hospitalization"travel time - a period of time spent traveling; "workers were not paid for their travel time between home and factory"times - a more or less definite period of time now or previously present; "it was a sign of the times"time - an indefinite period (usually marked by specific attributes or activities); "he waited a long time"; "the time of year for planting"; "he was a great actor in his time"elapsed time - the time that elapses while some event is occurringduration, continuance - the period of time during which something continuescalendar week, week - a period of seven consecutive days starting on Sundaymidweek - the middle of a weekfield day - a time of unusual pleasure and successlifespan, lifetime, life-time, life - the period during which something is functional (as between birth and death); "the battery had a short life"; "he lived a long and happy life"life - the period between birth and the present time; "I have known him all his life"life - the period from the present until death; "he appointed himself emperor for life"millennium, millenary - a span of 1000 yearsbimillenary, bimillennium - a span of 2000 yearsoccupation - the period of time during which a place or position or nation is occupied; "during the German occupation of Paris"past - a earlier period in someone's life (especially one that they have reason to keep secret); "reporters dug into the candidate's past"shelf life - the length of time a packaged food or drug will last without deterioratingpuerperium - time period following childbirth when the mother's uterus shrinks and the other functional and anatomic changes of pregnancy are resolved; "a perinatologist cared for her during the puerperium"lactation - the period following birth during which milk is secreted; "lactation normally continues until weaning"time of life - a period of time during which a person is normally in a particular life statecalendar day, civil day - a day reckoned from midnight to midnightfestival - a day or period of time set aside for feasting and celebrationdaylight, daytime, day - the time after sunrise and before sunset while it is light outside; "the dawn turned night into day"; "it is easier to make the repairs in the daytime"forenoon, morn, morning, morning time - the time period between dawn and noon; "I spent the morning running errands"night, nighttime, dark - the time after sunset and before sunrise while it is dark outsidenight - the time between sunset and midnight; "he watched television every night"night - the period spent sleeping; "I had a restless night"night - a period of ignorance or backwardness or gloomeve - the period immediately before something; "on the eve of the French Revolution"evening - the early part of night (from dinner until bedtime) spent in a special way; "an evening at the opera"hebdomad, week - any period of seven consecutive days; "it rained for a week"fortnight, two weeks - a period of fourteen consecutive days; "most major tennis tournaments last a fortnight"weekend - a time period usually extending from Friday night through Sunday; more loosely defined as any period of successive days including one and only one SundayIndian summer, Saint Martin's summer - a period of unusually warm weather in the autumnyear - the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun; "a Martian year takes 687 of our days"schooltime, school day, school - the period of instruction in a school; the time period when school is in session; "stay after school"; "he didn't miss a single day of school"; "when the school day was done we would walk home together"
	2.	period - the interval taken to complete one cycle of a regularly repeating phenomenoninterval, time interval - a definite length of time marked off by two instantsorbit period - the time it takes to complete one full orbit around a celestial body; "the orbit period depends on the altitude of the satellite"
	3.	period - (ice hockey) one of three divisions into which play is divided in hockey gameshockey game, ice hockey, hockey - a game played on an ice rink by two opposing teams of six skaters each who try to knock a flat round puck into the opponents' goal with angled sticksdivision, section, part - one of the portions into which something is regarded as divided and which together constitute a whole; "the written part of the exam"; "the finance section of the company"; "the BBC's engineering division"period of play, playing period, play - (in games or plays or other performances) the time during which play proceeds; "rain stopped play in the 4th inning"
	4.	period - a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods"geological periodgeologic time, geological time - the time of the physical formation and development of the earth (especially prior to human history)geological era, era - a major division of geological time; an era is usually divided into two or more periodsepoch - a unit of geological time that is a subdivision of a period and is itself divided into agesglacial epoch, glacial period, ice age - any period of time during which glaciers covered a large part of the earth's surface; "the most recent ice age was during the Pleistocene"
	5.	period - the end or completion of something; "death put a period to his endeavors"; "a change soon put a period to my tranquility"figure of speech, trope, image, figure - language used in a figurative or nonliteral senseend, ending - the point in time at which something ends; "the end of the year"; "the ending of warranty period"
	6.	period - the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause; "the women were sickly and subject to excessive menstruation"; "a woman does not take the gout unless her menses be stopped"--Hippocrates; "the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females"--Aristotlecatamenia, menses, menstruation, menstruum, flowexpelling, discharge, emission - any of several bodily processes by which substances go out of the body; "the discharge of pus"hypermenorrhea, menorrhagia - abnormally heavy or prolonged menstruation; can be a symptom of uterine tumors and can lead to anemia if prolongedoligomenorrhea - abnormally light or infrequent menstruation
	7.	period - a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations; "in England they call a period a stop"full point, full stop, stop, pointpunctuation mark, punctuation - the marks used to clarify meaning by indicating separation of words into sentences and clauses and phrasessuspension point - (usually plural) one of a series of points indicating that something has been omitted or that the sentence is incomplete

period

noun1. time, term, season, space, run, stretch, spell, phase, patch (Brit. informal), interval, span a period of a few months2. age, generation, years, time, days, term, stage, date, cycle, era, epoch, aeon the Victorian period3. class, session, lesson a Biology period

period

noun1. A specific length of time characterized by the occurrence of certain conditions or events:season, span, stretch, term.2. A particular time notable for its distinctive characteristics:age, day, epoch, era, time (often used in plural).3. An interval regarded as a distinct evolutionary or developmental unit:phase, stage.4. A span designated for a given activity:season, time.5. A concluding or terminating:cease, cessation, close, closing, closure, completion, conclusion, consummation, end, ending, end of the line, finish, stop, stopping point, termination, terminus, wind-up, wrap-up.

Translations

时期纪过去某一特定时期的句号句点

period

(ˈpiəriəd) noun1. any length of time. a period of three days; a period of waiting. 時期 时期2. a stage in the Earth's development, an artist's development, in history etc. the Pleistocene period; the modern period. 紀 纪3. the punctuation mark (.), put at the end of a sentence; a full stop. 句號 句号 adjective (of furniture, costumes etc) of or from the same or appropriate time in history; antique or very old. period costumes; His house is full of period furniture (=antique furniture). 過去某一特定時期的 过去某一特定时期的ˌperiˈodic (-ˈo-) adjective1. happening, done etc occasionally. He suffers from periodic fits of depression. 間歇(性)的 间发（性）的 2. (also ˌperiˈodical) happening, done etc at regular intervals. periodical reports. 週期性的 周期的ˌperiˈodically adverbWe see each other periodically. 定期地 定期地ˌperiˈodical (-ˈo-) noun a magazine which is issued regularly (every week, month etc). 期刊 期刊 adjectivesee periodic.

period

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