lunation

• Sudden changes provoked by this explosive lunation include the fall of authority figures, major accidents or geological upheaval. —  Midnight Moon Cafe
• As it had now been discovered that the exact length of the lunation is a little more than twenty-nine and a half days, it became necessary to abandon the alternate succession of full and deficient months; and, in order to preserve a more accurate correspondence between the civil month and the lunation, Meton divided the cycle into 125 full months of thirty days, and 110 deficient months of twenty-nine days each. —  Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"
• The mean length of the year is therefore 354-11/30 days, or 354 days 8 hours 48 min., which divided by 12 gives 29-191/360 days, or 29 days 12 hours 44 min., as the time of a mean lunation, and this differs from the astronomical mean lunation by only 2.8 seconds. —  Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"
• Some of the tribes recorded current history by means of "winter counts" or calendaric inscriptions, though their arithmetic was meager and crude, and their calendar proper was limited to recognition of the year, lunation, and day—or, as among so many primitive people, the "snow," "dead moon," and "night,"—with no definite system of fitting lunations to the annual seasons. —  The Siouan Indians
• Do not palsies and apoplexies, which occur about the equinoxes, happen a few days before the vernal equinoctial lunation, and after the autumnal one? —  Zoonomia, Vol. I Or, the Laws of Organic Life

Allen's Synonyms and Antonyms

Used in the Same Context