NounEquator (plural Equators)
- (often “the Equator”) An imaginary great circle around the earth, equidistant from the two poles, and dividing earth's surface into the northern and southern hemisphere.
- A similar great circle on any sphere, especially on a celestial body, or on other reasonably symmetrical three-dimensional body.
- A short form of the celestial 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
- æquator (archaic)