Crossword clues for period
- A punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations
- The interval taken to complete one cycle of a regularly repeating phenomenon
- An amount of time
- A time of life characterized as a distinct phase
- The monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
- Artistic stage
- Division of a hockey game
- Sentence ender
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Period \Pe"ri*od\, v. t.
To put an end to. [Obs.]
Period \Pe"ri*od\, n. [L. periodus, Gr. ? a going round, a way round, a circumference, a period of time; ? round, about + ? a way: cf. F. p['e]riode.]
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.
Hence: 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.
How by art to make plants more lasting than their ordinary period.
(Geol.) One of the great divisions of geological time; as, the Tertiary period; the Glacial period. See the Chart of Geology.
The termination or completion of a revolution, cycle, series of events, single event, or act; hence, a limit; a bound; an end; a conclusion.
So spake the archangel Michael; then paused, As at the world's great period.
Evils which shall never end till eternity hath a period.
This is the period of my ambition.
(Rhet.) A complete sentence, from one full stop to another; esp., a well-proportioned, harmonious sentence. ``Devolved his rounded periods.''
Periods are beautiful when they are not too long.
Note: The period, according to Heyse, is a compound sentence consisting of a protasis and apodosis; according to Becker, it is the appropriate form for the co["o]rdinate propositions related by antithesis or causality.
(Print.) The punctuation point [.] that marks the end of a complete sentence, or of an abbreviated word.
(Math.) 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.
(Med.) The time of the exacerbation and remission of a disease, or of the paroxysm and intermission.
(Mus.) A complete musical sentence.
The period, the present or current time, as distinguished from all other times.
Syn: Time; date; epoch; era; age; duration; limit; bound; end; conclusion; determination.
Period \Pe"ri*od\, v. i.
To come to a period; to conclude. [Obs.] ``You may period
upon this, that,'' etc.
Douglas Harper's Etymology Dictionary
early 15c., "course or extent of time," from Middle French periode (14c.) and directly from Medieval Latin periodus "recurring portion, cycle," from Latin periodus "a complete sentence," also "cycle of the Greek games," from Greek periodos "cycle, circuit, period of time," literally "a going around," from peri- "around" (see peri-) + hodos "a going, way, journey" (see cede).\n
\nSense of "repeated cycle of events" led to that of "interval of time." Meaning "dot marking end of a sentence" first recorded c.1600, from similar use in Medieval Latin (in late 16c. English it meant "full pause at the end of a sentence"). Sense of "menstruation" dates from 1822. Educational sense of "portion of time set apart for a lesson" is from 1876. Sporting sense attested from 1898. As an adjective from 1905; period piece attested from 191
1 appropriate for a given historical era. 2 (context of a film, or play, or similar English) Set in and designed to evoke a particular historical period, especially through the use of elaborate costumes and scenery. interj. (context chiefly North America English) And nothing else; and nothing less; used for emphasis. n. A length of time. (from 17th c.) v
1 (context obsolete intransitive English) To come to a period; to conclude. 2 To put an end to.
one of three periods of play in hockey games
the interval taken to complete one cycle of a regularly repeating phenomenon
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 [syn: menstruation, menses, menstruum, catamenia, flow]
a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods" [syn: geological period]
the end or completion of something; "death put a period to his endeavors"; "a change soon put a period to my tranquility"
Period may refer to:
In music, period refers to certain types of recurrence in small-scale formal structure. In twentieth-century music scholarship, the term is usually used as defined by the Oxford Companion to Music: "a period consists of two phrases, antecedent and consequent, each of which begins with the same basic motif." Earlier usage varied somewhat, but usually referred to a similar notions of symmetry, recurrence, and closure. The concept of a musical period originates in comparisons between music structure and rhetoric at least as early as the 16th century.
- Redirect Frequency
A period is one of the horizontal rows in the periodic table, all of whose elements have the same number of electron shells. Going across a period, each element has one more proton and is less metalic than its predecessor. Arranged this way, groups of elements in the same column have similar chemical and physical properties, reflecting the periodic law. For example, the alkaline metals lie in the first column ( group 1) and share similar properties, such as high reactivity and the tendency to lose one electron to arrive at a noble-gas electronic configuration. The periodic table of elements has a total of 118 elements.
Modern quantum mechanics explains these periodic trends in properties in terms of electron shells. As atomic number increases, shells fill with electrons in approximately the order shown at right. The filling of each shell corresponds to a row in the table.
In the s-block and p-block of the periodic table, elements within the same period generally do not exhibit trends and similarities in properties (vertical trends down groups are more significant). However, in the d-block, trends across periods become significant, and in the f-block elements show a high degree of similarity across periods.
Period (per) is a gene located on the X chromosome of Drosophila melanogaster. Oscillations in levels of both per transcript and its corresponding protein PER have a period of approximately 24 hours and together play a central role in the molecular mechanism of the Drosophila biological clock driving circadian rhythms in eclosion and locomotor activity. Mutations in the per gene can shorten (per), lengthen (per), and even abolish (per) the period of the circadian rhythm.
A school period is a block of time allocated for lessons, classes in schools. They typically last between 40 and 60 minutes, with around 3-8 periods per school day. However, especially in higher education, there can be many more. Educators determine the number and length of these periods, and may even regulate how each period will be used. One common example of this practice is to designate at least one compulsory period a day for physical education.
Period (Another American Lie) is the debut studio album by B.A.L.L., released in 1987 by Shimmy Disc.
A geologic period is one of several subdivisions of geologic time enabling cross-referencing of rocks and geologic events from place to place.
These periods form elements of a hierarchy of divisions into which geologists have split the Earth's history.
Eons and eras are larger subdivisions than periods while periods themselves may be divided into epochs and ages.
The rocks formed during a period belong to a stratigraphic unit called a system.
Usage examples of "period".
When we reach that period my readers must kindly accompany me to the breakfast.
If it be possible to measure the interval between the philosophic writings of Cicero and the sacred legend of Theodoret, between the character of Cato and that of Simeon, we may appreciate the memorable revolution which was accomplished in the Roman empire within a period of five hundred years.
Since their institution or revival by Augustus, they had been celebrated by Claudius, by Domitian, and by Severus, and were now renewed the fifth time, on the accomplishment of the full period of a thousand years from the foundation of Rome.
It is true, the prices assigned by the assize of Richard were meant as a standard for the accompts of sheriffs and escheators and as considerable profits were allowed to these ministers, we may naturally suppose that the common value of cattle was somewhat higher: yet still, so great a difference between the prices of corn and cattle as that of four to one, compared to the present rates, affords important reflections concerning the very different state of industry and tillage in the two periods.
Yet it may be doubted whether in any quarter of the world, sedimentary deposits, including fossil remains, have gone on accumulating within the same area during the whole of this period.
But when this period arrives and the menstrual discharge takes place into the vagina, the female will suffer from the retention and accumulation of this secretion, and ultimately a tumor or a protrusion of the membrane which closes the vagina will occur, giving rise to severe pain and other serious symptoms.
With mammoth government contracts in the offing, Weinberg had no trouble converting the Business Advisory Council of leading businessmen into an agency for helping governmental leaders plan the policies for war and for the post-war period.
An allegorical interpretation, in the form, perhaps, of a marginal note, invaded the text of the Latin Bibles, which were renewed and corrected in a dark period of ten centuries.
Hence it was held that certain Indian allottees under an agreement according to which, in part consideration of their relinquishment of all their claim to tribal property, they were to receive in severalty allotments of lands which were to be nontaxable for a specified period, acquired vested rights of exemption from State taxation which were protected by the Fifth Amendment against abrogation by Congress.
It is a curious and a mystical fact, that at the period to which I am alluding, and a very short time, only a little month, before he successfully solicited the hand of Miss Milbanke, being at Newstead, he fancied that he saw the ghost of the monk which is supposed to haunt the abbey, and to make its ominous appearance when misfortune or death impends over the master of the mansion.
Their other ally, Grigoriev, was of little use at the time, as he was traversing the most chaotic and anarchic period of his life.
If we accept the skeletal evidence presented in these reports, we must go further and accept the existence of anatomically modern human beings in these remote periods.
Liebreich found examples of retinal hemorrhage in suppressed menstruation, and Sir James Paget says that he has seen a young girl at Moorfields who had a small effusion of blood into the anterior chamber of the eye at the menstrual period, which became absorbed during the intervals of menstruation.
This type of exposure leads to gastrointestinal anthrax, which usually has an incubation period of two to five days.
In the cases following September 11, there was evidence that the anthrax spores had been specially treated so they would remain suspended in the air for prolonged periods, making them more likely to be inhaled because they could literally float out of an envelope.