Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An extrasolar planet.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun astronomy, planetology A planet which exists outside Earth's solar system.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Constructed from Ancient Greek: exo- +‎ planet.

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Examples

  • Smallest exoplanet is shown to be a solid, rocky world.

    Thor's Day feste_sylvain 2009

  • Until Wednesday, the highest value Laughlin assigned to an exoplanet, which is what astronomers call a planet outside our solar system, was a measly $158.

    NASA Spots 54 Potentially Life-Friendly Planets AP 2011

  • Meanwhile, Hubble confirms methane on the atmosphere of an exoplanet, which is getting sexed up by the media as potential extraterrestrial life.

    Recent Events From Space « Imaginary Potential 2008

  • Meanwhile, Hubble confirms methane on the atmosphere of an exoplanet, which is getting sexed up by the media as potential extraterrestrial life.

    March « 2008 « Imaginary Potential 2008

  • Until Wednesday, the highest value Laughlin assigned to an exoplanet, which is what astronomers call a planet outside our solar system, was a measly $158.

    chron.com Chronicle 2011

  • Until Wednesday, the highest value Laughlin assigned to an exoplanet, which is what astronomers call a planet outside our solar system, was a measly $158.

    Boston.com Top Stories 2011

  • Until Wednesday, the highest value Laughlin assigned to an exoplanet, which is what astronomers call a planet outside our solar system, was a measly $158.

    Yahoo! News: Business - Opinion 2011

  • Until Wednesday, the highest value Laughlin assigned to an exoplanet, which is what astronomers call a planet outside our solar system, was a measly $158.

    Yahoo! News: Business - Opinion 2011

  • Until Wednesday, the highest value Laughlin assigned to an exoplanet, which is what astronomers call a planet outside our solar system, was a measly $158.

    chron.com Chronicle 2011

  • Until Wednesday, the highest value Laughlin assigned to an exoplanet, which is what astronomers call a planet outside our solar system, was a measly $158.

    chron.com Chronicle 2011

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