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1. (n.) libration
a real or apparent oscillatory motion, esp. of the moon.
Etymology: (1595–1605; < L lībrātiō act of leveling =
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| Definition of 'libration' |
Princeton's WordNet |
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1. (noun) libration
(astronomy) a real or apparent slow oscillation of a moon or satellite
"the libration of the moon"
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| Definition of 'libration' |
Webster Dictionary |
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1. (noun) libration
the act or state of librating
2. (noun) libration
a real or apparent libratory motion, like that of a balance before coming to rest
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| Definitions of 'libration' |
The Nuttall Encyclopedia |
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1. libration
the name given to certain apparent movements in the moon as if it swayed like a balance both in latitude and longitude in its revolution round the earth.
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