Definition from Wiktionary, the free dictionary
See also: Asteroid Belt
- (astronomy) The Main Asteroid Belt, the region of the orbital plane of the Solar System located between the orbits of Mars and Jupiter which is occupied by numerous minor planets (asteroids) and the dwarf planet Ceres.
region of the solar system
- (astronomy) A set of orbits in a region that contains asteroids or similar minor planets arrayed as an annulus around the planetary system's orbital center