Of or pertaining to Mars, the Roman god of war, or to the planet bearing his name; martial.

An inhabitant of the planet Mars; -- fictional or hypothetical.

A being from the planet Mars. Usually thought of as having green skin, webbed fingers and feet and some odd assortment of features such as eyes, noses, and sensors.

imaginary people who live on the planet Mars

of or relating to the planet Mars (or its fictional inhabitants)

Having to do with the planet Mars.

A Martian is a hypothetical or fictional native inhabitant of the planet Mars. Historically, life on Mars has often been hypothesized, although there is currently no solid evidence of life there. It is possible that the planet harbours or once harboured life, but scientists no longer consider it likely that Mars has ever had intelligent life.

Martians are the race of extraterrestrials from the H.G. Wells novel The War of the Worlds.