libration
[ lahy-brey-shuhn ]
/ laɪˈbreɪ ʃən /
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noun Astronomy.
a real or apparent oscillatory motion, especially of the moon.
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Let’s start with some etymology: What are the origins of the typographical word “bracket”?
First appeared around 1750, and is related to the French word “braguette” for the name of codpiece armor.
First appeared in 1610, based on the French word “baguette” for the long loaf of bread.
First appeared in 1555, and is related to the French word “raquette” for a netted bat.
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OTHER WORDS FROM libration
li·bra·tion·al, adjectiveWords nearby libration
library paste, library science, library steps, library table, librate, libration, libratory, librettist, libretto, Libreville, libri
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for libration
British Dictionary definitions for libration
libration
/ (laɪˈbreɪʃən) /
noun
the act or an instance of oscillating
a real or apparent oscillation of the moon enabling approximately 59 per cent of the surface to be visible from the earth over a period of time
Derived forms of libration
librational, adjectiveWord Origin for libration
C17: from Latin librātus, from librāre to balance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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