The American Heritage® Dictionary of the English Language, 4th Edition
n. Astronomy Any of numerous small celestial bodies that revolve around the sun, with orbits lying chiefly between Mars and Jupiter and characteristic diameters between a few and several hundred kilometers. Also called minor planet, planetoid.
n. A naturally occurring solid object, which is smaller than a planet and is not a comet, that orbits a star
n. In the Solar system, such a body that orbits within the orbit of Jupiter
n. Any member of the taxonomic class Asteroidea; a starfish
the GNU version of the Collaborative International Dictionary of English
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.
The Century Dictionary and Cyclopedia
Star-like.
Having a flower like that of an aster.
n. One of the small planets, 280 or more in number, between the orbits of Mars and Jupiter: more accurately called planetoids. See planetoid.
n. One of the Asteroidea; a starfish, in a wide sense.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. shaped like a star
n. any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)
Word Usage
"* And the only thing that can stop this asteroid is your liberal arts degree."