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 But these exoplanets have much higher temperatures. Rudy Molinek, Smithsonian Magazine, 10 July 2024 In addition to hydrogen sulfide, researchers found carbon dioxide, oxygen, water and heavy metals in the unique exoplanet's atmosphere, according to the study published in Nature on Monday. Leah Sarnoff, ABC News, 9 July 2024 The findings, published in Nature Astronomy, also detail that the exoplanet might be tidally locked to its host star, meaning that one side of the exoplanet always faces its star. Elizabeth Gamillo, Discover Magazine, 16 May 2024 Pristine configuration Scientists discovered six exoplanets that revolve around a star in a rare pattern called orbital resonance, said a study published in the journal Nature. Harold Maass, The Week Us, theweek, 18 Apr. 2024 See all Example Sentences for exoplanet 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'exoplanet.' 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

1992, in the meaning defined above

Time Traveler
The first known use of exoplanet was in 1992

Dictionary Entries Near exoplanet

Cite this Entry

“Exoplanet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exoplanet. Accessed 27 Jul. 2024.

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