synodic month

synodic month

n.

See lunar month.

synodic month

n

(Units) See month⁶

month

(mʌnθ)

n.

1. any of the 12 parts, as January or May, into which the calendar year is divided.

2. the time from any day of one calendar month to the corresponding day of the next.

3. a period of four weeks or 30 days.

4.

a. Also called solar month. one-twelfth of a solar year.

b. Also called lunar month. the period of a complete revolution of the moon around the earth, as between successive new moons (synodic month), or between successive conjunctions with a star (sidereal month).

5. months, an indefinitely long period of time: I haven't seen him for months.

Idioms:

a month of Sundays, an indeterminately great length of time.

[before 900; Middle English; Old English mōnath; c. Old Frisian mōnath, Old High German mānōd, (German Monat), Old Norse mānathr, Gothic mēnōths. See moon]

Thesaurus

Noun

1.

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