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lunar day

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lunar day

–noun
a division of time that is equal to the elapsed time between two consecutive returns of the same terrestrial meridian to the moon.

Origin:
1680–90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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lunar day

noun
the period of time taken for the moon to make one full rotation on its axis (about 27.3 sidereal days) 
WordNet® 3.0, © 2006 by Princeton University.
Cite This Source Link To lunar day
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