Martian

American  

[mahr-shuhn] / ˈmɑr ʃən /

adjective

1. of, relating to, or like the planet Mars or its hypothetical inhabitants.

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noun

Martians plural

1. a supposed inhabitant of the planet Mars.

   The science-fiction novel was about the invasion of our planet by Martians.

Martian British  

/ ˈmɑːʃən /

adjective

1. of, occurring on, or relating to the planet Mars

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noun

1. an inhabitant of Mars, esp in science fiction

Other Word Forms

Derived Forms

• trans-Martian
  adjective

Inflected Forms

Nouns

• Martians
  plural

Etymology

Origin of Martian

1350–1400; Middle English marcien < Latin Mārti ( us ) of, belonging to Mars ( see March) + -an

Example Sentences

"Martian was once idealistic and full of hope, then his moral compass gets eroded by the things he has to do and the sacrifices that go into it."

From BBC • Jun. 20, 2026

Mangalyaan was successfully placed in the Martian orbit on 24 September 2014, making India only the fourth country or geo-bloc to do so.

From BBC • Jun. 5, 2026

Results show that the Martian surface is capable of preserving molecules that could act as potential signs of ancient life.

From Science Daily • Apr. 28, 2026

The third-generation Starship is designed for lunar and Martian missions, with its 12th test flight anticipated in late May.

From Barron's • Apr. 26, 2026

Because of communication and temperature constraints, Viking could not land at high Martian latitudes.

From "Cosmos" by Carl Sagan