lunation

noun lu·na·tion \ lü-ˈnā-shən \
Updated on: 10 Apr 2018

Definition of lunation

: the period of time averaging 29 days, 12 hours, 44 minutes, and 2.8 seconds elapsing between two successive new moons

Recent Examples of lunation from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lunation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of lunation

Middle English lunacioun, from Anglo-French lunaison, from Medieval Latin lunation-, lunatio, from Latin luna


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to speak or write verbosely and windily

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