- 1A 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°.More example sentences
- UV intensity falls as one moves from the equator toward Earth's poles, increasing latitude.
- As of 1791, the meter was defined as one ten-millionth the distance from the North Pole to the equator along the line of longitude that passes through Paris.
- This influx of fresh water causes the Gulf Stream, the ocean current that carries warm water from the equator into the northern hemisphere, to stop.
late Middle English: from medieval Latin aequator, in the phrase circulus aequator diei et noctis 'circle equalizing day and night', from Latin aequare 'make equal' (see equate).
More definitions of equatorDefinition of equator in:
- The US English dictionary