Englishsidereal monthnounMeaningThe time in which the moon passes round the ecliptic to the same star: 27.3217 days.Related wordslunar month(English)sidereal year(English)sidereal day(English)sidereal time(English)stellar day(English)year(English)sidereal orbital period(English)sidereal rotation period(English)SourcesDictionaryAPI.dev English dictionary data