mar·​tian ˈmär-shən How to pronounce martian (audio)
often capitalized
: of or relating to the planet Mars or its hypothetical inhabitants
martian noun often capitalized

Examples of martian in a Sentence

Recent Examples on the Web Get the full tutorial here » Martian and Astronaut For looks that are out of this world, try out a martian and astronaut costume this Halloween. Juliana Labianca, Good Housekeeping, 21 Aug. 2023 The vital exchange between martian and terran exploration has inspired missions like Perseverance and those lined up to follow. Marissa Grunes, Discover Magazine, 6 Apr. 2023 Researchers found it in the Allan Hills region of Antarctica on a meteorite-hunting expedition in 1984, and brought to the Meteorite Processing Laboratory of the Johnson Space Center (JSC), where the rock’s martian origin was discovered almost a decade later in 1993. Elise Cutts, Discover Magazine, 17 Feb. 2023 Scientists know that there’s ice beneath the martian surface. Erika K. Carlson, Discover Magazine, 16 Dec. 2019 Hope began orbiting Mars in 2021 to study the martian atmosphere. Byjeffrey Brainard,, 27 Apr. 2023 Stored in 43 ultraclean tubes, those samples represent the start of a multibillion-dollar, multinational effort to collect martian rocks and return them for analysis on Earth; two follow-up missions to retrieve the samples are planned for later this decade. Paul Voosen, Science | AAAS, 23 Feb. 2021 After some 15 prolific years on the martian surface, NASA’s Opportunity rover has gone silent. John Wenz, Discover Magazine, 28 Dec. 2019 November 26 at 2:54 ET, NASA’s InSight lander touched down successfully on the martian surface. Chelsea Gohd, Discover Magazine, 26 Nov. 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'martian.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1880, in the meaning defined above

Time Traveler
The first known use of martian was in 1880

Dictionary Entries Near martian

Cite this Entry

“Martian.” Dictionary, Merriam-Webster, Accessed 19 Jun. 2024.

Kids Definition


: of or relating to the planet Mars or its supposed inhabitants
Martian noun

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