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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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Origin of libration

1595–1605; <Latin lībrātiōn- (stem of lībrātiō) a balancing. See librate, -ion

OTHER WORDS FROM libration

li·bra·tion·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use libration in a sentence

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, adjective

Word Origin for libration

C17: from Latin librātus, from librāre to balance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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