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lunar cycle

noun
Origin
1695-1705
1695-1705
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for lunar cycle
  • Hmm, months, don't those have something vaguely to do with the lunar cycle.
  • The farm is converting to biodynamics, that beyond-organic form of farming that pays strict attention to the lunar cycle.
  • The name comes from a lunar cycle, the period in which they earn their money and spend it all.
  • Tidal wetlands are generally found between sea level and the highest tide over the monthly lunar cycle.
Encyclopedia Article for lunar cycle

Metonic cycle

in chronology, a period of 19 years in which there are 235 lunations, or synodic months, after which the Moon's phases recur on the same days of the solar year, or year of the seasons. The cycle was discovered by Meton (fl. 432 BC), an Athenian astronomer. Computation from modern data shows that 235 lunations are 6,939 days, 16.5 hours; and 19 solar years, 6,939 days, 14.5 hours. See also golden number.

Learn more about Metonic cycle with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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