Definition of period

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Period (n.) One of the great divisions of geological time; as, the Tertiary period; the Glacial period. See the Chart of Geology..

Lern More About Period

Season :: Season (n.) A period of time not very long; a while; a time.
Quadrennial :: Quadrennial (a.) Comprising four years; as, a quadrennial period..
Champlain Period :: Champlain period () A subdivision of the Quaternary age immediately following the Glacial period; -- so named from beds near Lake Champlain.
Millennial :: Millennial (a.) Of or pertaining to the millennium, or to a thousand years; as, a millennial period; millennial happiness..
Age :: Age (n.) The latter part of life; an advanced period of life; seniority; state of being old.
Primordial :: Primordial (a.) Of or pertaining to the lowest beds of the Silurian age, corresponding to the Acadian and Potsdam periods in American geology. It is called also Cambrian, and by many geologists is separated from the Silurian..
Venus :: Venus (n.) One of the planets, the second in order from the sun, its orbit lying between that of Mercury and that of the Earth, at a mean distance from the sun of about 67,000,000 miles. Its diameter is 7,700 miles, and its sidereal period 224.7 days. As the morning star, it was called by the ancients Lucifer; as the evening star, Hesperus..
Decennial :: Decennial (a.) Consisting of ten years; happening every ten years; as, a decennial period; decennial games..
Always :: Always (adv.) Constancy during a certain period, or regularly at stated intervals; invariably; uniformly; -- opposed to sometimes or occasionally..
Evening :: Evening (n.) The latter portion, as of life; the declining period, as of strength or glory..
Anatropous :: Anatropous (a.) Having the ovule inverted at an early period in its development, so that the chalaza is as the apparent apex; -- opposed to orthotropous..
Astronomy :: Astronomy (n.) The science which treats of the celestial bodies, of their magnitudes, motions, distances, periods of revolution, eclipses, constitution, physical condition, and of the causes of their various phenomena..
Day :: Day (n.) A specified time or period; time, considered with reference to the existence or prominence of a person or thing; age; time..
Irrevoluble :: Irrevoluble (a.) That has no finite period of revolution; not revolving.
Spell :: Spell (n.) The time during which one person or gang works until relieved; hence, any relatively short period of time, whether a few hours, days, or weeks..
Time :: Time (n.) The period at which any definite event occurred, or person lived; age; period; era; as, the Spanish Armada was destroyed in the time of Queen Elizabeth; -- often in the plural; as, ancient times; modern times..
Day :: Day (n.) The period of the earth's revolution on its axis. -- ordinarily divided into twenty-four hours. It is measured by the interval between two successive transits of a celestial body over the same meridian, and takes a specific name from that of the body. Thus, if this is the sun, the day (the interval between two successive transits of the sun's center over the same meridian) is called a solar day; if it is a star, a sidereal day; if it is the moon, a lunar day. See Civil day, Sidereal day
Serial :: Serial (n.) A publication appearing in a series or succession of part; a tale, or other writing, published in successive numbers of a periodical..
Night :: Night (n.) A lifeless or unenlivened period, as when nature seems to sleep..
Jubilee :: "Jubilee (n.) Every fiftieth year, being the year following the completion of each seventh sabbath of years, at which time all the slaves of Hebrew blood were liberated, and all lands which had been alienated during the whole period reverted to their former owners..
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