Synonyms and Antonyms for september-equinox

2. mid-September (n.)

the middle part of September

Synonyms: Antonyms:

4. 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

Synonyms: Antonyms:

5. equinox (n.)

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

Synonyms: Antonyms: