Full-moon definition

The phase of the moon when it is on the side of the earth away from the sun, with its entire face reflecting sunlight to the earth.

The phase of the moon at which the moon, as viewed from Earth, appears to be fully illuminated by the sun. The full phase marks the half-way point of a single revolution of the moon around the earth.

The period of the month when such a moon occurs.

The time of month when such a moon is seen.

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.

The moon when it is in opposition to the sun.