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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If the Rubin telescope finds a super-Earth, Rice said, that would be exciting because these celestial bodies, between the sizes of Earth and Neptune, are a common type of exoplanet. Jacopo Prisco, CNN, 5 Nov. 2024 And there are more super-puff observations in the works around other stars, too, to help unravel the mystery of these weird exoplanets. Briley Lewis, Popular Science, 9 Oct. 2024 López-Morales, who studies atmospheric dynamics of exoplanets, says that these planets are unlikely to have an atmosphere because of their close proximity to their host star. John Wenz, Scientific American, 4 Oct. 2024 The insights gathered through the program’s observations of the largest storms in our solar system can help scientists understand what weather may be like on exoplanets orbiting other stars. Ashley Strickland, CNN, 11 Oct. 2024 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

Dictionary Entries Near exoplanet

Cite this Entry

“Exoplanet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exoplanet. Accessed 24 Nov. 2024.

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