lunation
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lu·na·tion
(lo͞o-nā′shən)n.
The time that elapses between successive new moons, averaging 29 days, 12 hours, 44 minutes; a lunar month.
[Middle English lunacioun, from Medieval Latin lūnātiō, lūnātiōn-, from Latin lūna; see lunar.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
lunation
(luːˈneɪʃən)n
(Units) another name for synodic month See month6
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
lu•na•tion
(luˈneɪ ʃən)n.
the period of time from one new moon to the next (about 29½ days).
[1350–1400; Middle English < Medieval Latin lūnātiō]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
lunation
the period of the moon’s synodic revolution, from the time of the new moon to the next new moon; one lunar month or approximately 29 1/2 days.
See also: Calendar-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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Noun | 1. | lunation - the period between successive new moons (29.531 days) lunar year - a period of 12 lunar months month - a time unit of approximately 30 days; "he was given a month to pay the bill" |
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