from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy Any planet of the
Solar Systemwhose orbitis located beyond the asteroid belt, i.e., any of Jupiter, Saturn, Uranus, or Neptune.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun (astronomy) a major planet whose orbit is outside the asteroid belt (Jupiter, Saturn, Uranus, Neptune, Pluto)
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