exoplanet 

An exoplanet (exo-planet), is an extra-solar (outside of our solar system) planet orbiting a star, other than the Sun, within our Milky Way galaxy.

The Kepler Telescope mission has discovered 4,000+ confirmed exoplanets in all, as of February 2015.

exoplanet by DaleBryTheScienceGuy September 2, 2016

exoplanet 

Any planet that navigates around a star, other than the Sun, is an exoplanet.

Many planets (over 200) have been discovered in the nineties that don't go around our Sun. They are exoplanets.

exoplanet by darksongbird April 2, 2009

Exoplanetology 

The study of Exoplanets.

The accelerating rate of exoplanet discoveries contribute to the growing field of Exoplanetology, which will ultimately tackle the prospect of life on other worlds.

Exoplanetology by metapsyche January 16, 2011

exoplanet 

The planet from where EXO (a korean boyband) came from. It is also EXO's name for their first concert.

EXO-L: wow, the exoplanet must be so lucky to have EXO as its population

EXO-L: did you see that he took his shirt off at EXOPLANET in Seoul?

exoplanet by A2106 May 10, 2018

explanetory 

Something dat supplies clarifying details regarding da Sun's satellite-spheres.

Da infamous, "Are there gaseous clouds around Uranus?" question needs no explanetory words if you just think about it for a moment. :P

explanetory by QuacksO June 24, 2023