new moonTranslate new moon | into German | into Italian Definition of new moon noun the phase of the moon when it first appears as a slender crescent, shortly after its conjunction with the sun: owls hooted and the new moon rose the time when the new moon appears. Astronomy the time at which the moon is in conjunction with the sun, when it is not visible from the earth: only 31 hours before new moonnew moon in other Oxford dictionaries Definition of new moon in the US English dictionary
