| 单词 | sidereal |
| 释义 | Word Frequency sidereal(saɪˈdɪərɪəl) adjective 1. of, relating to, or involving the stars 2. determined with reference to one or more stars the sidereal day Derived forms sidereally (siˈdereally) adverb Word origin C17: from Latin sīdereus, from sīdus a star, a constellation |
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