Equator
Equator E*qua"tor, n. [L. aequator one who equalizes: cf. F. ['e]quateur equator. See {Equate}.] 1. (Geog.) 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. [1913 Webster]

2. (Astron.) 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}. [1913 Webster]

{Equator of the sun} or {Equator 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}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Synonyms:

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  • equator — late 14c., from M.L. aequator diei et noctis equalizer of day and night (when the sun is on the celestial equator, twice annually, day and night are of equal length), agent noun from L. aequare make equal (see EQUATE (Cf. equate)). Sense of… …   Etymology dictionary

  • equator — [ē kwāt′ər, ikwāt′ər] n. [ME < ML < LL aequator, lit., one who makes equal: see EQUATE] 1. an imaginary circle around the earth, equally distant at all points from both the North and South Poles: it divides the earth s surface into the… …   English World dictionary

  • equator — EQUATÓR s.n. v. ecuator. Trimis de LauraGellner, 13.09.2007. Sursa: DN …   Dicționar Român

  • Equator — Eqüator, Equatour m. l Equateur …   Diccionari Personau e Evolutiu

  • equator — ► NOUN ▪ a notional line around the earth equidistant from the poles, dividing the earth into northern and southern hemispheres. ORIGIN Latin aequator, in the phrase circulus aequator diei et noctis circle equalizing day and night …   English terms dictionary

  • Equator — For other uses, see Equator (disambiguation). 0° Equator …   Wikipedia

  • equator — noun VERB + EQUATOR ▪ cross ▪ straddle PREPOSITION ▪ around the equator ▪ Rainforests occur around the equator …   Collocations dictionary

  • equator — /i kway teuhr/, n. 1. the great circle on a sphere or heavenly body whose plane is perpendicular to the axis, equidistant everywhere from the two poles of the sphere or heavenly body. 2. the great circle of the earth that is equidistant from the… …   Universalium

  • equator — e|qua|tor Equator [ıˈkweıtə US ər] n [Date: 1300 1400; : Medieval Latin; Origin: aequator equalizer , from Latin aequare ( EQUATE); because day and night are equal at the equator] the equator an imaginary line drawn around the middle of the Earth …   Dictionary of contemporary English

  • equator — n. above; at, on; below the equator * * * [ɪ kweɪtə] at below the equator on above …   Combinatory dictionary

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