equator

n. நிலநடுக்கோடு, நிலவுலகநடுவட்டவரை, கோளங்களில் இருதுருவங்களுக்கு இடையிலுள்ள நடுவட்டக்கோடு.

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E*qua"tor, n. Etym: [L. aequator one who equalizes: cf. F. équateur equator. See Equate.] 1. (Geog.) Defn: The imaginary great circle on the earth's surface, everywhere equally distant from the two poles, and dividing the earth's surface into two hemispheres. 2. (Astron.) Defn: The great circle of the celestial sphere, coincident with the plane of the earth's equator; -- so called because when the sun is in it, the days and nights are of equal length; hence called also the equinoctial, and on maps, globes, etc., the equinoctial line. Equator of the sun or of a planet (Astron.), the great circle whose plane passes through through the center of the body, and is perpendicular to its axis of revolution. -- Magnetic equator. See Aclinic.

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