Full Moon

full moon

1. one of the four phases of the moon, occurring when the earth lies between the sun and the moon so that the moon is visible as a fully illuminated disc

2. the moon in this phase

3. the time at which this occurs

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full moon [¦fu̇l ′mün]

(astronomy)

The moon at opposition, with a phase angle of 0°, when it appears as a round disk to an observer on the earth because the illuminated side is toward the observer.

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Full Moon 

a phase of the moon in which the moon is near the point in the sky opposite the sun and in which its entire bright side is turned to the earth. In this phase, the moon appears as a bright disk.