| 单词 | equinox |
| 释义 | equinox n. 1. the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length. 2. = equinoctial point. Phrases and idioms autumn (or autumnal) equinox about 22 Sept. spring (or vernal) equinox about 20 March. Etymology: ME f. OF equinoxe or med.L equinoxium for L aequinoctium (as EQUI-, nox noctis night) |
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