synodic month

noun

: a lunar month

Examples of synodic month in a Sentence

Recent Examples on the Web

Of course, those who have done their homework know the saros is a period of 223 synodic months (18 years, 11 days, and 8 hours); this is used to predict Earth's Sun and Moon eclipses. — Fran Ruiz, Space.com, 6 Jan. 2026

Word History

First Known Use

1654, in the meaning defined above