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equator 音标拼音: [ɪkw'etɚ] n. 赤道 赤道 equator n 1: an imaginary line around the Earth forming the great circle that is equidistant from the north and south poles; " the equator is the boundary between the northern and southern hemispheres" 2: a circle dividing a sphere or other surface into two usually equal and symmetrical partsEquator \ E* qua" tor\, n. [ L. aequator one who equalizes: cf. F. [' e] quateur equator. See { Equate}.] 1. ( Geog.) 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. [ 1913 Webster] 2. ( Astron.) 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}. [ 1913 Webster] { Equator of the sun} or { Equator of a planet} ( Astron.), the great circle whose plane passes through through the center of the body, and is perpendicular to its axis of revolution. { Magnetic equator}. See { Aclinic}. [ 1913 Webster] 104 Moby Thesaurus words for " equator": Antarctic Zone, Arctic Circle, Arctic Zone, Frigid Zones, Torrid Zone, Tropic of Cancer, Tropic of Capricorn, Variable Zones, anklet, aphelion, apogee, armlet, astronomical longitude, autumnal equinox, band, belt, bisector, boundary, bracelet, celestial equator, celestial longitude, celestial meridian, center, cincture, cingulum, circle, climate, clime, collar, collarband, colures, core, diameter, diaphragm, divider, earring, ecliptic, equinoctial, equinoctial circle, equinoctial colure, equinox, fascia, fillet, finger ring, furnace, galactic longitude, geocentric longitude, geodetic longitude, girdle, girt, girth, great circle, halfway mark, heart, heliocentric longitude, hell, hoop, horse latitudes, inferno, interior, kernel, latitude, line of demarcation, longitude, longitude in arc, mean, median, meridian, middle, midmost, midriff, midst, neckband, necklace, nose ring, nucleus, orbit, oven, parallel, partition, perigee, perihelion, period, prime meridian, quoit, ring, roaring forties, small circle, solstitial colure, steam bath, subtropics, the line, thick, thick of things, trajectory, tropic, tropics, vernal equinox, waist, waistline, wristband, wristlet, zodiac, zone
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