Equinox Definition
equinox
- noun
- either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length
- (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic
Usage tips for "equinox"
Understanding the precise definition of a word helps you use it with confidence. When using "equinox" in your writing, consider whether you need the word itself or one of its synonyms — subtle differences in meaning can change the tone of a sentence. If you're writing poetry or song lyrics, check the rhymes for equinox to find words that pair well.