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Meaning of EQUINOX

Pronunciation:  'eekwu`nâks

WordNet Dictionary
  1. [n]  (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic
  2. [n]  either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length

EQUINOX is a 7 letter word that starts with E.


 Synonyms: equinoctial point
 See Also: autumnal equinox, autumnal equinox, celestial point, cosmic time, fall equinox, March equinox, September equinox, spring equinox, vernal equinox, vernal equinox



Webster's 1913 Dictionary
\E"qui*nox\, n. [OE. equinoxium, equenoxium, L.
aequinoctium; aequus equal + nox, noctis, night: cf. F.
['e]quinoxe. See {Equal}, and {Night}.]
1. The time when the sun enters one of the equinoctial
   points, that is, about March 21 and September 22. See
   {Autumnal equinox}, {Vernal equinox}, under {Autumnal} and

         When descends on the Atlantic The gigantic Stormwind
         of the equinox.                       --Longfellow.

2. Equinoctial wind or storm. [R.] --Dryden.

Thesaurus Terms
 Related Terms: aphelion, apogee, astronomical longitude, autumnal equinox, celestial equator, celestial longitude, celestial meridian, circle, colures, ecliptic, equator, equinoctial, equinoctial circle, equinoctial colure, galactic longitude, geocentric longitude, geodetic longitude, great circle, heliocentric longitude, longitude, meridian, orbit, perigee, perihelion, period, small circle, solstice, solstitial colure, summer solstice, trajectory, vernal equinox, winter solstice, zodiac, zone