lunar

Short definition from Wiktionary

Adjective

1. 1
   Of, pertaining to, or resembling the Moon (that is, Luna, the Earth's moon).
2. 2
   Shaped like a crescent moon; lunate.
3. 3
   Extremely high.
4. 4
   (Believed to be) influenced by the Moon, as in character, growth, or properties.
5. 5
   Of or pertaining to silver (which was symbolically associated with the Moon by alchemists).
6. 6
   Of or pertaining to travel through space between the Earth and the Moon, or exploration and scientific investigation of the Moon.
7. 7
   Alternative letter-case form of lunar (“pertaining to Luna, the moon of Terra”).

Noun

1. 1
   The middle bone of the proximal series of the carpus in the wrist, which is shaped like a half-moon.
2. 2
   An observation of a lunar distance (“the angle between the Moon and another celestial body”), especially for establishing the longitude of a ship at sea.