lunation

[ loo-ney-shuhn ]

noun

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

Origin of lunation

1350–1400; Middle English lunacyon<Medieval Latin lūnātiōn- (stem of lūnātiō). See Luna, -ation

Words Nearby lunation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use lunation in a sentence

In fact, the year and the lunation are to one another very nearly in the proportion of 235 to 19.
Astronomical Myths | John F. Blake
Now that lunation having commenced on the 3rd of December, and consisting of thirty days, will end on the 1st of January.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 | Various
The calendar is constructed on the assumptions that the mean lunation is 29 days 12 hours 44 min.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 | Various
So that in both these cases fever commenced in half a lunation after the contagion was received.
Zoonomia, Vol. II | Erasmus Darwin
The fever and eruption in the distinct kind take up another quarter of a lunation, and the maturation another quarter.
Zoonomia, Vol. II | Erasmus Darwin

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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