Martian
The term Martian referred to anyone or anything originating on the planet Mars. 

During the 20th century, when many believed that Mars was inhabited by "little green men", or other individuals otherwise described as "extraterrestrial", any "aliens" were assumed to be of Martian descent.

The War of the Worlds featured Martian invaders, whose appearance was said to have a strange horror. (). Incredible Tales of Scientific Wonder also featured stories about "men from Mars". ()

In an alternate timeline in 1944, the Na'kuhl were described as "Martian Nazis." ()

Similarly, during the Roswell Incident in July 1947, United States Army Air Forces Lieutenant General Denning and Wainwright referred to the aliens discovered in a crashed flying saucer as "Martians". ()

When Amelia Earhart was confronted with an Ocampa accompanying several Humans who encountered her in 2371, she assumed that the Humans were trying to trick her into believing Martians had invaded Earth. ()

Following the colonization of Mars in 2103, the term was used to describe the name of the very colony placed there, aptly named the Martian colonies. (; )

The term was featured in a nonsense two-line poem that Charlie Evans forced Spock to recite in 2266: "Saturn rings around my head, down a road that's Martian red." ()

See also 
 Martian insect

External link 
 
Nicknames