a line notionally drawn on the earth equidistant from the poles, dividing the earth into northern and southern hemispheres and constituting the parallel of latitude 0°
(地球的)赤道。
a corresponding line on a planet or other body
(行星或其他天体的)赤道。
【天文】 <Bold>CELESTIAL EQUATOR</Bold>的简称。
"late Middle English: from medieval Latin