libration
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English[edit]
Etymology[edit]
From Latin lībrātiō (“a hurling, swinging”), from lībrō (“poise, cause to swing”).
Pronunciation[edit]
Noun[edit]
libration (countable and uncountable, plural librations)
- The act of librating.
- (astronomy) The apparent wobble or variation in the visible side of the Moon that permanently faces the Earth, allowing observers on Earth to see, over a period of time, slightly more than half of the lunar surface.
- (by extension) A similar rotational or orbital characteristic of some other celestial body.
- (dynamics) The oscillation of an angle about a stable equilibrium point.[1]
- (chemistry) A vibrational degree of freedom whereby a group of atoms partly rotates back and forth, similar to the Moon's motion.
Derived terms[edit]
Related terms[edit]
Translations[edit]
act of libration
astronomy: apparent wobble of the moon
astronomy: similar characteristic of another celesial object
See also[edit]
References[edit]
French[edit]
Pronunciation[edit]
Audio (file)
Noun[edit]
libration f (plural librations)
Derived terms[edit]
Further reading[edit]
- “libration”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.
Categories:
- English terms derived from Latin
- English 3-syllable words
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- English terms with audio links
- Rhymes:English/eɪʃən
- Rhymes:English/eɪʃən/3 syllables
- English lemmas
- English nouns
- English uncountable nouns
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- en:Astronomy
- en:Chemistry
- French terms with audio links
- French lemmas
- French nouns
- French countable nouns
- French feminine nouns