Definition of equator

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Equator (n.) The imaginary great circle on the earth's surface, everywhere equally distant from the two poles, and dividing the earth's surface into two hemispheres..

Lern More About Equator

Ecliptic :: Ecliptic (a.) A great circle drawn on a terrestrial globe, making an angle of 23¡ 28' with the equator; -- used for illustrating and solving astronomical problems..
Equator :: Equator (n.) The imaginary great circle on the earth's surface, everywhere equally distant from the two poles, and dividing the earth's surface into two hemispheres..
Orion :: Orion (n.) A large and bright constellation on the equator, between the stars Aldebaran and Sirius. It contains a remarkable nebula visible to the naked eye..
Low :: Low (superl.) Near, or not very distant from, the equator; as, in the low northern latitudes..
Equant :: Equant (n.) A circle around whose circumference a planet or the center of ann epicycle was conceived to move uniformly; -- called also eccentric equator.
Doldrums :: Doldrums (n. pl.) A part of the ocean near the equator, abounding in calms, squalls, and light, baffling winds, which sometimes prevent all progress for weeks; -- so called by sailors..
Parallel :: Parallel (n.) One of the imaginary circles on the surface of the earth, parallel to the equator, marking the latitude; also, the corresponding line on a globe or map..
Climate :: Climate (v. i.) One of thirty regions or zones, parallel to the equator, into which the surface of the earth from the equator to the pole was divided, according to the successive increase of the length of the midsummer day..
Antiscii :: Antiscii (n. pl.) The inhabitants of the earth, living on different sides of the equator, whose shadows at noon are cast in opposite directions..
Equatorial :: Equatorial (a.) Of or pertaining to the equator; as, equatorial climates; also, pertaining to an equatorial instrument..
Aclinic :: Aclinic (a.) Without inclination or dipping; -- said the magnetic needle balances itself horizontally, having no dip. The aclinic line is also termed the magnetic equator..
Longitude :: Longitude (n.) The arc or portion of the equator intersected between the meridian of a given place and the meridian of some other place from which longitude is reckoned, as from Greenwich, England, or sometimes from the capital of a country, as from Washington or Paris. The longitude of a place is expressed either in degrees or in time; as, that of New York is 74¡ or 4 h. 56 min. west of Greenwich..
Astrolabe :: Astrolabe (n.) A stereographic projection of the sphere on the plane of a great circle, as the equator, or a meridian; a planisphere..
Girdle :: Girdle (n.) The zodiac; also, the equator..
Obliquity :: Obliquity (n.) The condition of being oblique; deviation from a right line; deviation from parallelism or perpendicularity; the amount of such deviation; divergence; as, the obliquity of the ecliptic to the equator..
Sextans :: Sextans (n.) A constellation on the equator south of Leo; the Sextant.
Rossel Current :: Rossel current () A portion of the southern equatorial current flowing westward from the Fiji Islands to New Guinea.
Delphinus :: Delphinus (n.) The Dolphin, a constellation near the equator and east of Aquila..
Southing :: Southing (n.) Distance of any heavenly body south of the equator; south declination; south latitude.
Plane :: Plane (a.) An ideal surface, conceived as coinciding with, or containing, some designated astronomical line, circle, or other curve; as, the plane of an orbit; the plane of the ecliptic, or of the equator..
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