Definitions of Period [ˈpɪər i əd]

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Definition of 'Period'

Random House Webster's College Dictionary

1. (n.) period
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.  period
a specific division or portion of time:
the postwar period.

3.  period
a round of time, esp. as marked by the recurrence of some phenomenon:
the rainy period.

4.  period
any of the parts of equal length into which a particular thing, as a sports contest, is divided.

5.  period
the time during which something is completed or runs its course:
the gestation period.

6.  period
the point or character (.) used esp. to mark the end of a declarative sentence or to indicate an abbreviation; full stop.

7.  period
a full pause, as is made at the end of a complete sentence; full stop.

8.  period
a sentence, esp. a well-balanced, impressive sentence.

9.  period
an occurrence of menstruation.

10.  period
a time of the month during which menstruation occurs.

11.  period
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.  period
Physics. the duration of one complete cycle of a wave or oscillation; the reciprocal of the frequency.

13.  period
a division of a musical composition commonly consisting of two or more contrasted or complementary phrases ending with a cadence.

14.  period
Astron.

15.  period
the time in which a body rotates once on its axis.

16.  period
the time in which a planet or satellite revolves once about its primary.

17.  period
(in classical prosody) a group of two or more cola.

18. (adj.) period
noting or pertaining to a historical period.

19. (interj.) period
(used to indicate that a decision is final):
I forbid you to go, period.

Etymology: (1375–1425; < MF < ML periodus, L < Gk períodos circuit, period of time, period in rhetoric)

Definition of 'Period'

Princeton's WordNet

1. (noun) time period, period of time, period
an amount of time
"a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"

2. (noun) period
the interval taken to complete one cycle of a regularly repeating phenomenon

3. (noun) period
(ice hockey) one of three divisions into which play is divided in hockey games

4. (noun) period, geological period
a unit of geological time during which a system of rocks formed
"ganoid fishes swarmed during the earlier geological periods"

5. (noun) period
the end or completion of something
"death put a period to his endeavors"; "a change soon put a period to my tranquility"

6. (noun) menstruation, menses, menstruum, catamenia, period, flow
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"--Aristotle

7. (noun) period, point, full stop, stop, full point
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"

Definition of 'Period'

Kernerman English Learner’s Dictionary

1. (noun) period
a measure of time
a 3-hour period; a period of three weeks

2. period
a written mark (.) that indicates the end of a sentence
Remember to use a period at the end of your sentences.

3. period
the flow of blood from a woman's uterus each month
the time when a woman gets her period

Definition of 'Period'

Webster Dictionary

1. (noun) Period
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

2. (noun) Period
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

3. (noun) Period
one of the great divisions of geological time; as, the Tertiary period; the Glacial period. See the Chart of Geology

4. (noun) Period
the termination or completion of a revolution, cycle, series of events, single event, or act; hence, a limit; a bound; an end; a conclusion

5. (noun) Period
a complete sentence, from one full stop to another; esp., a well-proportioned, harmonious sentence

6. (noun) Period
the punctuation point [.] that marks the end of a complete sentence, or of an abbreviated word

7. (noun) Period
one of several similar sets of figures or terms usually marked by points or commas placed at regular intervals, as in numeration, in the extraction of roots, and in circulating decimals

8. (noun) Period
the time of the exacerbation and remission of a disease, or of the paroxysm and intermission

9. (noun) Period
a complete musical sentence

10. (verb) Period
to put an end to

11. (verb) Period
to come to a period; to conclude. [Obs.] "You may period upon this, that," etc

Definition of 'Period'

The Standard Electrical Dictionary

1. Period
The time required for the completion of one complete element of periodic motion. This may be a complete alternation (See Alternation, Complete) of an alternating current, or of an oscillatory discharge.

Definition of 'Period'

Dictionary of Military and Associated Terms

1. Period
The time it takes for a satellite to complete one orbit around the earth.

Translation of 'Period'

Kernerman English Multilingual Dictionary

Sense: any length of time a period of three days; a period of waiting.
Afrikaans: tydperk	Arabic: فَتْرَه	Bulgarian: период
Brazilian: período	Czech: období, doba	German: die Zeitspanne
Danish: periode; tidsrum	Greek: περίοδος	Spanish: período
Estonian: aeg	Farsi: بازه زمانی؛ زمان	Finnish: ajanjakso
French: période	Hebrew: פֶּרֶק-זְמָן	Hindi: काल, अवधि
Croatian: razdoblje, vrijeme	Hungarian: (idő)tartam	Indonesian: masa
Icelandic: tími, skeið, tímabil	Italian: periodo	Japanese: 期間
Korean: 기간	Lithuanian: laikotarpis, metas	Latvian: periods; laika posms
Malay: tempoh	Dutch: periode	Norwegian: tidsrom, periode
Polish: okres	Persian: بازه زمانی؛ زمان	Pashto: وخت مهال، دوره، موده، پاى
Portuguese: período	Romanian: perioadă	Russian: промежуток времени; перио
Slovak: obdobie, doba	Slovenian: obdobje	Serbian: period
Swedish: period, tidsrymd	Thai: ระยะเวลา	Turkish: süre, dönem
Taiwanese: 時期	Ukrainian: період	Urdu: زمانہ
Vietnamese: giaiđoạn	Chinese: 时期
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