exoplanet

noun

exo·​plan·​et ˈek-sō-ˌpla-nət How to pronounce exoplanet (audio)
ˌek-sō-ˈpla-
: a planet orbiting a star that is not our sun

Examples of exoplanet in a Sentence

Recent Examples on the Web
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While setting off on a mission to find other inhabitable planets, astronaut pilot Brianna Young (Lashana Lynch) and her team of space explorers crash land on Tau Ceti f—a real exoplanet in the Tau Ceti star system—where they are hunted by a terrifying extraterrestrial that can mimic its prey. Destiny Jackson, Deadline, 19 June 2025 Key Facts As exoplanets go, o, 14 Herculis c is huge — about seven times the mass of Jupiter. Jamie Carter, Forbes.com, 12 June 2025 Earlier studies of the system had suggested that there was also an exoplanet present in the system. John Timmer, ArsTechnica, 22 May 2025 Claims of advanced civilizations Detecting microbial life on Mars or an exoplanet would be dramatic, but the discovery of extraterrestrial civilizations would be truly spectacular. Chris Impey, The Conversation, 25 Apr. 2025 See All Example Sentences for exoplanet

Word History

First Known Use

1992, in the meaning defined above

Time Traveler
The first known use of exoplanet was in 1992

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Cite this Entry

“Exoplanet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exoplanet. Accessed 26 Jun. 2025.

Last Updated: - Updated example sentences
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