lunar month


noun

Origin of lunar month

First recorded in 1585–95

British Dictionary definitions for lunar month

lunar month

noun

another name for synodic month See month (def. 6)

Scientific definitions for lunar month

lunar month

The average time between successive occurrences of the same phase of the Moon, equal to approximately 29 days, 12 hours, 44 minutes. Depending on the lunar calendar being used, a lunar month can begin with the new moon or the full moon. Also called lunation synodic month♦ A period of 12 lunar months is a lunar year.