vernal equinox

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. March 21
• Syn:
March equinox, spring equinox
• Ant:
autumnal equinox
• Hypernyms:
equinox
• Hyponyms:
Noruz, Nowruz, Nowrooz
• Part Holonyms:
spring, springtime, March, Mar
2. (astronomy) the equinoctial point that lies in the constellation of Pisces
• Topics:
astronomy, uranology
• Hypernyms:
equinoctial point, equinox