Associations to the word «Libration»
Wiktionary
LIBRATION, noun. The act of librating.
LIBRATION, noun. (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.
LIBRATION, noun. (by extension) A similar rotational or orbital characteristic of some other celestial body.
Dictionary definition
LIBRATION, noun. (astronomy) a real or apparent slow oscillation of a moon or satellite; "the libration of the moon".
Wise words
Language is a process of free creation; its laws and
principles are fixed, but the manner in which the principles
of generation are used is free and infinitely varied. Even
the interpretation and use of words involves a process of
free creation.