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Equinox
01
(astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic
Grammatical Information
Animacy status
Abstract
Composition
Compound
Countable
Plural form
equinoxes
02
either of the two moments in a year when the Sun, in its apparent motion along the ecliptic, crosses the celestial equator, resulting in approximately equal periods of daylight and darkness worldwide
Examples
The spring equinox marks the beginning of spring in the Northern Hemisphere.
