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

Southing :: Southing (n.) Distance of any heavenly body south of the equator; south declination; south latitude.
Ellipticity :: Ellipticity (n.) Deviation of an ellipse or a spheroid from the form of a circle or a sphere; especially, in reference to the figure of the earth, the difference between the equatorial and polar semidiameters, divided by the equatorial; thus, the ellipticity of the earth is /..
Equatorially :: Equatorially (adv.) So as to have motion or direction parallel to the equator.
Equatorial :: Equatorial (a.) Of or pertaining to the equator; as, equatorial climates; also, pertaining to an equatorial instrument..
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..
Equator :: Equator (n.) The great circle of the celestial sphere, coincident with the plane of the earth's equator; -- so called because when the sun is in it, the days and nights are of equal length; hence called also the equinoctial, and on maps, globes, etc., the equinoctial line..
Terrel :: Terrel (n.) A spherical magnet so placed that its poles, equator, etc., correspond to those of the earth..
Line :: Line (n.) The equator; -- usually called the line, or equinoctial line; as, to cross the line..
Serpentarius :: Serpentarius (n.) A constellation on the equator, lying between Scorpio and Hercules; -- called also Ophiuchus..
Delphinus :: Delphinus (n.) The Dolphin, a constellation near the equator and east of Aquila..
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..
Inclinnation :: Inclinnation (n.) The angle made by two lines or planes; as, the inclination of the plane of the earth's equator to the plane of the ecliptic is about 23ยก 28'; the inclination of two rays of light..
Northing :: Northing (n.) The distance of any heavenly body from the equator northward; north declination.
Girdle :: Girdle (n.) The zodiac; also, the equator..
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.
Latitude :: Latitude (n.) Distance north or south of the equator, measured on a meridian..
Tropic :: Tropic (n.) One of the two small circles of the celestial sphere, situated on each side of the equator, at a distance of 23? 28/, and parallel to it, which the sun just reaches at its greatest declination north or south, and from which it turns again toward the equator, the northern circle being called the Tropic of Cancer, and the southern the Tropic of Capricorn, from the names of the two signs at which they touch the ecliptic..
Sextans :: Sextans (n.) A constellation on the equator south of Leo; the Sextant.
Low :: Low (adv.) In a path near the equator, so that the declination is small, or near the horizon, so that the altitude is small; -- said of the heavenly bodies with reference to the diurnal revolution; as, the moon runs low, that is, is comparatively near the horizon when on or near the meridian..
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..
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