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Definition of Vernal equinox
1. Noun. March 21.
Exact synonyms: March Equinox, Spring Equinox
Group relationships: Mar, March, Spring, Springtime
Generic synonyms: Equinox
Specialized synonyms: Noruz, Nowrooz, Nowruz
Antonyms: Autumnal Equinox
Group relationships: Mar, March, Spring, Springtime
Generic synonyms: Equinox
Specialized synonyms: Noruz, Nowrooz, Nowruz
Antonyms: Autumnal Equinox
2. Noun. (astronomy) the equinoctial point that lies in the constellation of Pisces.
Definition of Vernal equinox
1. Noun. the moment when the sun appears to cross the celestial equator, heading northward ¹
2. Noun. the point where the ecliptic intersects the celestial equator at that time ¹
¹ Source: wiktionary.com