1 article for "Full Moon"

The phase of the Moon when it is opposite the Sun. Thus, the fully lit face is toward the Earth. Also, the date (each month) when the Moon reaches this phase...or The entire face of the Moon illuminated as seen from the Earth. This occurs when the excess of the Moon's apparent longitude over the Sun's apparent longitude is exactly 180°.

See also:
♦ Lunar Phases ♦ Zodiacal Longitude