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lunation

[ loo-ney-shuhn ]
/ luˈneɪ ʃən /
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noun

the period of time from one new moon to the next (about 29½ days); a lunar month.

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Origin of lunation

1350–1400; Middle English lunacyon<Medieval Latin lūnātiōn- (stem of lūnātiō). See Luna, -ation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for lunation

lunation
/ (luːˈneɪʃən) /

noun

another name for synodic month See month (def. 6)
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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