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exoplanet

[ ek-soh-plan-it ]

/ ˈɛk soʊˌplæn ɪt /

noun Astronomy.

a planet that revolves around a star other than the sun.

Origin of exoplanet

First recorded in 1970–75; exo- + planet

OTHER WORDS FROM exoplanet

ex·o·plan·e·tar·y, adjective

Words nearby exoplanet

exophthalmic goiter, exophthalmic goitre, exophthalmic ophthalmoplegia, exophthalmos, exophytic, exoplanet, exoplasm, exopodite, exopterygote, exor., exorable

Example sentences from the Web for exoplanet

Now the verdict is in: Gliese 581g is an ex-planet, not an exoplanet.

The Exoplanet That Wasn’t There |Matthew R. Francis |July 6, 2014 |DAILY BEAST
Exoplanet astronomy—the search for planets orbiting other stars—has two major goals.

The Exoplanet That Wasn’t There |Matthew R. Francis |July 6, 2014 |DAILY BEAST
The same group of astronomers has also inferred a type of exoplanet that fits in between the rocky planets and the gas giants.

Mega-Earth Is the Weirdest Exoplanet Yet |Matthew R. Francis |June 8, 2014 |DAILY BEAST
Imagine, though, a Saturn-mass exoplanet with a Titan-sized moon orbiting its star within the habitable zone.

Could ‘Star Wars’ Be Right About Habitable Moons? |Matthew R. Francis |May 4, 2014 |DAILY BEAST

On Thursday, researchers announced the discovery of Kepler-186f, an Earth-like exoplanet orbiting in a “habitable zone.”

What Does the Discovery of “Another Earth” Mean for Us? |Matthew R. Francis |April 18, 2014 |DAILY BEAST

British Dictionary definitions for exoplanet

exoplanet

/ (ˈɛksəʊˌplænɪt) /

noun

a planet that orbits a star in a solar system other than that of Earth

Scientific definitions for exoplanet

exoplanet

[ ĕk′sō-plăn′ĭt ]

See extrasolar planet.