单词 | precessed |
释义 | precession /pri-seshˈən/noun
ORIGIN: LL praecessiō, -ōnis, from praecēdere; see precede precess /-sesˈ/ intransitive verb (back-formation from precession; of a spinning-top, etc) to wobble precessˈional adjective precession of the equinoxes A slow westward motion of the equinoctial points along the ecliptic, caused by the greater attraction of the sun and moon on the excess of matter at the equator, such that the times at which the sun crosses the equator come at shorter intervals than they would otherwise do |
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