- i. That point of intersection of the ecliptic and the celestial equator occupied by the sun as it changes from a south to a north declination, on or about March 21. Also called the March equinox or the first point of Aries.ii. That instant the sun reaches the point of zero declination when crossing the celestial equator from south to north.
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Vernal equinox — Vernal Ver nal, a. [L. vernalis, fr. vernus vernal, ver spring; akin to Gr. ?, Skr. vasanta, Icel. v[=a]r, and E. Easter, east.] 1. Of or pertaining to the spring; appearing in the spring; as, vernal bloom. [1913 Webster] 2. Fig.: Belonging to… … The Collaborative International Dictionary of English
vernal equinox — ► NOUN ▪ the spring equinox … English terms dictionary
vernal equinox — 1. See under equinox (def. 1). 2. Also called vernal point. the position of the sun at the time of the vernal equinox. [1525 35] * * * … Universalium
vernal equinox — /vɜnəl ˈikwənɒks/ (say vernuhl eekwuhnoks) noun 1. See equinox (def. 1). 2. Also, vernal point. the position of the sun on the celestial equator at the time of the vernal equinox … Australian English dictionary
vernal equinox — noun 1. March 21 • Syn: ↑March equinox, ↑spring equinox • Ant: ↑autumnal equinox • Hypernyms: ↑equinox • Hyponyms: ↑Noruz, ↑ … Useful english dictionary
vernal equinox — Synonyms and related words: aphelion, apogee, astronomical longitude, autumnal equinox, celestial equator, celestial longitude, celestial meridian, circle, colures, ecliptic, equator, equinoctial, equinoctial circle, equinoctial colure, equinox,… … Moby Thesaurus
vernal equinox — noun a) the moment when the sun appears to cross the celestial equator, heading northward b) the point where the ecliptic intersects the celestial equator at that time … Wiktionary
vernal equinox — noun 1》 the spring equinox. 2》 Astronomy another term for First Point of Aries (see Aries) … English new terms dictionary
vernal equinox — ver′nal e′quinox n. astron. See under equinox • Etymology: 1525–35 … From formal English to slang
Vernal Equinox — The first day of spring, about March 21, this is when the day and night are of equal length and the Sun rises due east and sets due west. See Autumnal Equinox … The writer's dictionary of science fiction, fantasy, horror and mythology