°(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.
°(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.