Equinox

Noun

 * 1) The intersection of the ecliptic (apparent path of the sun) with the celestial equator.

Hyponyms

 * autumn equinox
 * autumnal equinox
 * March equinox
 * September equinox
 * spring equinox
 * vernal equinox

Derived terms

 * equinoctial
 * northward equinox
 * precession of the equinoxes
 * southward equinox

Coordinate terms

 * solstice

Thesaurus
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

Alternative forms

 * æquinox

Etymology
From aequus: + nox:.

Translations

 * Armenian:
 * Catalan: equinocci
 * Czech:
 * Dutch:, ,
 * Esperanto:
 * Finnish:
 * French:
 * German: ,
 * Greek:
 * Hungarian:
 * Interlingua: equinoctio
 * Italian:


 * Latin:
 * Norwegian: Jevndøgn
 * Polish: równonoc
 * Portuguese:
 * Romanian: echinox, echinocţiu
 * Russian:
 * Scottish Gaelic: co-fhad-thràth
 * Serbian: ravnodnevnica, ravnodnevica
 * Slovene: enakonočje, ekvinokcij
 * Spanish: equinoccio
 * Swedish:
 * Turkish: