Synonyms for equinox | Synonym.com

Synonyms for equinox

1. equinox (n.)

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

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2. vernal equinox (n.)

March 21

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3. autumnal equinox (n.)

September 22

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4. autumnal equinox (n.)

(astronomy) the equinoctial point that lies in the constellation of Virgo

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5. vernal equinox (n.)

(astronomy) the equinoctial point that lies in the constellation of Pisces

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6. equinoctial point (n.)

(astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic

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