Martian

 
Pronunciation: /ˈmɑːʃ(ə)n/

adjective

  • relating to the planet Mars or its supposed inhabitants: the Martian atmosphere the first Martian colony

noun

  • a hypothetical or fictional inhabitant of Mars: a nest of Martians

Origin:

late Middle English (in the senses 'subject to Mars's influence' and 'martial'): from Latin Mars, Mart- (see Mars) + -ian