asteroid belt(redirected from Main belt)
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The region of the solar system between the orbits of Mars and Jupiter, where most of the asteroids are found.
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|Noun||1.||asteroid belt - the region of interplanetary space between Mars and Jupiter where most asteroids are found|
interplanetary space - the part of outer space within the solar system
belt - an elongated region where a specific condition or characteristic is found; "a belt of high pressure"