asteroid belt

noun

: the region of interplanetary space between the orbits of Mars and Jupiter in which most asteroids are found

Examples of asteroid belt in a Sentence

Recent Examples on the Web
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They are found concentrated in the main asteroid belt, orbiting around the sun between the paths of Mars and Jupiter. Soo Kim, MSNBC Newsweek, 17 July 2025 That place, the ice line – sometimes called the snow line – was in what’s now the asteroid belt, which is between Mars and Jupiter. Lucas Brefka, The Conversation, 19 May 2025 This photograph was taken in the main asteroid belt of our solar system, where the spacecraft came close to the asteroid at 596 miles (960 kilometers) from Earth. Kenna Hughes-Castleberry, Space.com, 7 July 2025 Along the way, Jupiter flung some smaller rocks out of the solar system altogether; the rest went to the asteroid belt. Lucas Brefka, The Conversation, 19 May 2025 See All Example Sentences for asteroid belt

Word History

First Known Use

1867, in the meaning defined above

Time Traveler
The first known use of asteroid belt was in 1867

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Cite this Entry

“Asteroid belt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/asteroid%20belt. Accessed 4 Aug. 2025.

Kids Definition

asteroid belt

noun
: the region of interplanetary space between the orbits of Mars and Jupiter in which most asteroids are found

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