exoplanet

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noun exo·plan·et \ˈek-sō-ˌpla-nət, ˌek-sō-ˈpla-\

Definition of exoplanet

  1. :  a planet orbiting a star that is not our sun

Recent Examples of exoplanet from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'exoplanet.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of exoplanet

1996


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