bn:00053360n
Noun Concept
EN
March equinox  vernal equinox  spring equinox
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EN
The moment when the sun crosses the celestial equator while heading northward, occurring on March 19–21. That would be vernal equinox in the northern hemisphere and autumnal equinox in the southern hemisphere. Wiktionary
The moment when the sun appears to cross the celestial equator while tilting towards from the observer, taking place in March in the northern hemisphere and September in the southern hemisphere. Wiktionary
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WordNet 3.0 & WordNet 2020
Wiktionary