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 the exoplanet resides only 1.4 million miles from its star—less than one-sixtieth the distance from Earth to our sun—and completes an orbit roughly every 17 hours. Will Sullivan, Smithsonian Magazine, 9 May 2024 Venus is the closest exoplanet Studying Venus could give scientists insights of what a world looks like when there are no carbon sinks left. Regina G. Barber, NPR, 8 May 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 17 May. 2024.

More from Merriam-Webster on exoplanet

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