(science fiction) A hypothetical language spoken on Mars.

(astrology) A person under the astrological influence of the planet Mars.

(chiefly science fiction) An inhabitant of the planet mars, specifically a male martian.

(science fiction) Of or relating to the planet Mars, or its imagined inhabitants.

(astrology) Pertaining to the astrological influence of the planet Mars; aggressive, bellicose.

Alternative form of Martian packet

(nonstandard) Alternative letter-case form of Martian (“of or pertaining to the planet Mars”).