01 n. The time when the sun enters one of the equinoctial points, that is, about March 21 and September 22. See Autumnal equinox, Vernal equinox,…
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1.
The time when the sun enters one of the equinoctial points, that is, about March 21 and September 22. See Autumnal equinox, Vernal equinox, under Autumnal and Vernal. See: Autumnal, Vernal“When descends on the Atlantic The gigantic Stormwind of the equinox.” — Longfellow.
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2.
Equinoctial wind or storm.[R.]