jovian planet: any of the four outermost planets in the solar system; much larger than Earth and gaseous in nature (like Jupiter)
planet: (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction
notoryctus: type genus of the family Notoryctidae: comprising solely the marsupial mole