dark of the moon


dark of the moon

[¦därk əv thə ′mün] (astronomy) The time period of approximately a week at the time of a new moon, when the light of the moon is absent at night. Any period in which the light of the moon is obscured.

new moon

The moon at conjunction, when little or none of it is visible to an observer on the earth because the illuminated side is away from the person. Also called the change of the moon or the dark of the moon. See age of the moon.