n. [ OE. equinoxium, equenoxium, L. aequinoctium; aequus equal + nox, noctis, night: cf. F. équinoxe. See Equal, and Night. ]
When descends on the Atlantic
The gigantic
Stormwind of the equinox. Longfellow. [ 1913 Webster ]
n. The vernal equinox. [ WordNet 1.5 ]