gibbous

1. (astronomy, of a celestial body) Having more than half (but not the whole) of its disc illuminated.Examples: "The moving moon, full, gibbous, or crescent-shaped, shone at last for the navigators of the eighteenth century like a luminous hand on the clock of heaven."; "On December 7, 1972, the Apollo 17 astronauts took a photograph of a gibbous Earth at a distance of eighteen thousand miles from its surface."