outer planet

Definitions of outer planet
1

n (astronomy) a major planet whose orbit is outside the asteroid belt (Jupiter, Saturn, Uranus, Neptune, Pluto)

Examples:
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Jupiter
the largest planet and the 5th from the sun; has many satellites and is one of the brightest objects in the night sky
Neptune
a giant planet with a ring of ice particles; the 8th planet from the sun is the most remote of the gas giants
Pluto
a small planet and the farthest known planet from the sun; it has the most elliptical orbit of all the planets
Saturn
a giant planet that is surrounded by three planar concentric rings of ice particles; the 6th planet from the sun
Uranus
a giant planet with a ring of ice particles; the 7th planet from the sun has a blue-green color and many satellites
Type of:
major planet, 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

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