What does "exoplanet" mean?

A planet which exists outside Earth's solar system.

Exoplanet

Common synonyms include: alien world, extrasolar planet, gas giant exoplanetary, planet discovery.

noun

noun ·Rare ·Advanced level

Noun

1
A planet which exists outside Earth's solar system.
"More such announcements will likely come in the months to follow, as the first space observatory dedicated to hunting exoplanets, called COROT, begins full operation and researchers complete their calculations."
2
A planet which exists outside Earth's solar system wordnet

"An exomoon is a moon that orbits around an exoplanet."

Constructed from Ancient Greek: exo- (“outside; extrasolar”) + planet.