What is the meaning of Equator?
An imaginary great circle around 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.
The midline of any generally spherical object, such as a fruit or vegetable, that has identifiable poles.
The celestial equator.
equator (great circle, equidistant from the poles, on Earth or another sphere)
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