equinox
英 ['iːkwɪnɒks; 'ekwɪ-]
美['ikwɪnɑks]
- n. 春分；秋分；昼夜平分点
英英释意
- 1. 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
- 2. (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic