/looh"neuhr/ , adj.
1. of or pertaining to the moon: the lunar orbit.
2. measured by the moon's revolutions: a lunar month.
3. resembling the moon; round or crescent-shaped.
4. of or pertaining to silver.
n.
5. a lunar observation taken for purposes of navigation or mapping.
[ 1585-95; lunaris of the moon. See LUNA, -AR 1 ]