| equator | an imaginary line around the Earth forming the great circle that is equidistant from the north and south poles |
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| equator | a circle dividing a sphere or other surface into two usually equal and symmetrical parts |
| equator | of or existing at or near the geographic equator |
| equator | of or relating to conditions at the geographical equator |
| equator | of or relating to or at an equator |
| equator | any of the ocean currents that flow westward at the equator |
| equator | a country of west central Africa (including islands in the Gulf of Guinea) |
| equator | monetary unit in Equatorial Guinea |