[ˈiːkwɪnɒks], (Noun)

Definitions:
- the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of approximately equal length (about 22 September and 20 March)
(e.g: the equinox isn't for another few weeks)


Phrases:

Origin:
late Middle English: from Old French equinoxe or Latin aequinoctium, from aequi- ‘equal’ + nox, noct- ‘night’