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 Share [Findings] The exoplanet NGTS-10b was found to have a year lasting eighteen Earth hours and to be at risk of falling into its star. Rafil Kroll-Zaidi, Harper's Magazine, 22 May 2024 Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3. Elizabeth Gamillo, Discover Magazine, 16 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 29 May. 2024.

More from Merriam-Webster on exoplanet

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