| 单词 | precession |
| 释义 | precession n. the slow movement of the axis of a spinning body around another axis. Phrases and idioms precession of the equinoxes 1. the slow retrograde motion of equinoctial points along the ecliptic. 2. the resulting earlier occurrence of equinoxes in each successive sidereal year. Derivatives precessional adj. Etymology: LL praecessio (as PRECEDE) |
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