Definitionen
1.NounThe act of librating.
2.NounThe 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.NounA similar rotational or orbital characteristic of some other celestial body.
4.NounThe oscillation of an angle about a stable equilibrium point.
5.NounA vibrational degree of freedom whereby a group of atoms partly rotates back and forth, similar to the Moon's motion.
6.NounA wavering between two opposing thoughts or choices.