Astronomy. The period in which the moon makes a complete revolution relative to some point (fixed or movable). Cf. lunar month n. at lunar, adj. n.co…

The time from one new moon to the next, constituting a lunar month (= 29½ days).

poetic. The period of time in any one night during which the moon is visible. Obsolete.

month of consecutionin Astr.: a ‘lunar’ or synodic month, a lunation. Obsolete.

the interval from one new moon to the next, about 29½ days; in popular language often used for a period of 28 days (four weeks).

lunary month, lunary year (see lunar, adj. n.compounds 1).

a synodic month.

the interval between successive conjunctions of the moon and the sun.

Astronomy. Pertaining to the conjunction of two heavenly bodies (see conjunction, n. 3); said esp. of the revolution, or period of revolution, of a…