equinox
noun
1 equinox
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.
Dutch: nachtevening
Polish: równonoc, zrównanie dnia z nocą, ekwinokcjum
2 equinox
astronomy Either of the two celestial points at which the celestial equator intersects the ecliptic.
synonym: equinoctial point.
Moby 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 ... show more.
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