lunation
play
noun
lu·na·tion
\lü-ˈnā-shən\
Definition of lunation
: the period of time averaging 29 days, 12 hours, 44 minutes, and 2.8 seconds elapsing between two successive new moons
Origin and Etymology of lunation
Middle English lunacioun, from Anglo-French lunaison, from Medieval Latin lunation-, lunatio, from Latin luna
First Known Use: 14th century
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