Video shows what equator means. 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.. equator pronunciation. How to pronounce, definition by Wiktionary dictionary. equator meaning. Powered by MaryTTS

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