Definition of lunarian:
(n) :
(science fiction) An inhabitant of Earth's Moon (Luna): either an indigenous one or a human one.
(adj) :
(science fiction) Pertaining to the inhabitants of Luna (Lunarians).
(n) :
(celestial navigation) A maritime navigator who uses the Moon to determine longitude without the need for an accurate clock.
(n) :
(science fiction fandom) A member of the New York Science Fiction Society.
(n) :
Alternative letter-case form of Lunarian. [(science fiction) An inhabitant of Earth's Moon (Luna): either an indigenous one or a human one.]