| Asteroid (n.) A starlike body; esp. one of the numerous small planets whose orbits lie between those of Mars and Jupiter; -- called also planetoids and minor planets. Thesaurus Entries Earth, Jupiter, Mars, Mercury, Neptune, Pluto, Saturn, Uranus, Venus, asteroids, aurora particles, blackout, cosmic particles, cosmic ray bombardment, inferior planet, intergalactic matter, major planet, meteor dust impacts, meteors, minor planet, planet, planetoid, radiation, secondary planet, solar system, space bullets, superior planet, terrestrial planet, the bends, wanderer, weightlessness |