| 1. | the moon when the whole of its disk is illuminated, occurring when in opposition to the sun. |
| 2. | the phase of the moon at this time. |
| full moon n.
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full moon  (f l) Pronunciation Key
The phase of the Moon in which it is visible as a fully illuminated disk. This phase occurs when the Moon is on the opposite side of Earth as the Sun and is not in Earth's shadow. See more at moon. Compare new moon. |