asteroid belt

noun Astronomy.
the region of space between the orbits of Mars and Jupiter in which most asteroids are located. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Cultural Dictionary

asteroid belt definition

A region of the solar system between the orbits of the planets Mars and Jupiter. Most asteroids are found in the asteroid belt.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Most celestial bodies, including all the asteroids in the asteroid belt and our
  own moon, do not have atmospheres.
The asteroid belt is littered with debris from crashes between giant rocks but
  a collision has never before been seen to happen.
Main-belt comets reside in the asteroid belt but feature cometlike tails
  thought to arise from sublimating ice.
We have a large solar system to inhabit and an asteroid belt to mine.
Images for asteroid belt
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