What does "outer planet" mean?

Any planet of the Solar System whose orbit is located beyond the asteroid belt, i.e., any of Jupiter, Saturn, Uranus, or Neptune.

Outer planet

Common synonyms include: distant planet, distant world, far planet, gas giant exoplanet, giant planets, ice-giant.

noun

noun ·Rare ·Advanced level

Noun

1
Any planet of the Solar System whose orbit is located beyond the asteroid belt, i.e., any of Jupiter, Saturn, Uranus, or Neptune.
2
(astronomy) a major planet whose orbit is outside the asteroid belt (Jupiter, Saturn, Uranus, Neptune, Pluto) wordnet