libration

Etymology
From, from.

Noun

 * 1) The act of librating.
 * 2)  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.
 * 3)  A similar rotational or orbital characteristic of some other celestial body.
 * 4)  The oscillation of an angle about a stable equilibrium point.
 * 5)  A vibrational degree of freedom whereby a group of atoms partly rotates back and forth, similar to the Moon's motion.

Translations

 * Afrikaans:
 * Armenian:, ,
 * Finnish:
 * German: Ausschwingen,
 * Russian:


 * Armenian: ,
 * Finnish:, libraatio
 * German:
 * Icelandic: tunglvik
 * Japanese:
 * Korean: 칭동
 * Russian:


 * Armenian: ,
 * Finnish:, libraatio
 * Korean: 칭동
 * Russian: