vernal equinox vernal • vernal grass · · · Info · Definitions · Synonyms · Antonyms · Characters · · vernal equinox · · Text Common · · Latin · · Scripts 14 · · Length 6 · · Syllables Definitions · · · (noun) March 21. Synonyms: vernal equinox, March equinox, spring equinox. · · Noun Definition 1 (noun) (astronomy) the equinoctial point that lies in the constellation of Pisces. Synonyms: vernal equinox. · · Noun Definition 2 Synonyms · · · march equinox · · Synonym 1 spring equinox · · Synonym 2 Antonyms · · · autumnal equinox · · Antonym 0 september equinox · · Antonym 1 fall equinox · · Antonym 2 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F q latin small letter q U+0071 r latin small letter r U+0072 u latin small letter u U+0075 v latin small letter v U+0076 x latin small letter x U+0078