Dictionary 1. (n.) A celestial body which revolves about the sun in an orbit of a moderate degree of eccentricity. It is distinguished from a comet by the absence of a coma, and by having a less eccentric orbit. See Solar system.2. (n.) A star, as influencing the fate of a men. Thesaurus Earth Jupiter Mars Mercury Neptune Pluto Saturn Uranus Venus asteroid globe inferior planet major planet minor planet planetoid secondary planet solar system superior planet terrestrial planet wanderer world |