variants often Martian
: of or relating to the planet Mars or its hypothetical inhabitants
martian noun
often Martian

Examples of martian in a Sentence

Recent Examples on the Web
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The technology also suits space exploration to navigate dark lunar craters and Martian lava tubes where sunlight cannot reach. — Mrigakshi Dixit, Interesting Engineering, 18 Sep. 2026 In the lab, Hong Kong University of Science and Technology environmental engineer Ning Liu and colleagues already built tiny versions of future Martian habitats using the substance. — Kiona N. Smith, Space.com, 17 Sep. 2026 The Martian surface is a practically airless vacuum, constantly bombarded with radiation, and regularly reaches temperatures as low as -81 degrees Fahrenheit. — Andrew Paul, Popular Science, 10 Sep. 2026 The Martian atmosphere is thin, just 1 percent the density of air at sea level on Earth, so helicopters flying on Mars must spin their rotors faster than on Earth to generate lift. — Stephen Clark, ArsTechnica, 1 Sep. 2026 See All Example Sentences for martian

Word History

First Known Use

1880, in the meaning defined above

Time Traveler
The first known use of martian was in 1880

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Cite this Entry

“Martian.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/martian. Accessed 28 Sep. 2026.

Kids Definition

Martian

adjective
Mar·​tian
ˈmär-shən
: of or relating to the planet Mars or its supposed inhabitants
Martian noun
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