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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So there are huge economic opportunities for us in the asteroid belt, according to Brin. Mike Wall, Space.com, 3 July 2026 The fairly small spacecraft needed a high-energy launch because its destination was an orbit around the distant, metal-rich asteroid 16 Psyche in the asteroid belt. Eric Berger, ArsTechnica, 22 June 2026 Or, instead all its fragments may have scattered into the asteroid belt to rain down as angrites across the eons, says William Bottke, a solar system scientist at the Southwest Research Institute, who was uninvolved with the study. Jenna Ahart, Scientific American, 9 June 2026 The Psyche mission, launched in October 2023, is heading for Asteroid 16 Psyche in the outer part of the main asteroid belt between the orbits of Mars and Jupiter. Ashley Strickland, CNN Money, 21 May 2026 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 7 Jul. 2026.

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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