lunation

lu·na·tion  (l-nshn)

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 lnti, lntin-, from Latin lna; see lunar.]

---

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

Thesaurus

Noun

1.

lunation - the period between successive new moons (29.531 days) lunar month, synodic month, moon 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"