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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Picture a person in a coffee shop, wearing VR goggles, working with their AI life partner on an asteroid belt outpost. Rick Tumlinson, Space.com, 25 Sep. 2025 They are found concentrated in the main asteroid belt, which lies around the sun between the orbits of Mars and Jupiter. Soo Kim, MSNBC Newsweek, 23 Sep. 2025 Unlike the main asteroid belt, located between the orbits of Mars and Jupiter, the Arjuna asteroid is not a distinct belt. Ashley Strickland, CNN Money, 16 Sep. 2025 The data from the observatories suggested that the chemical signals were coming from a small region of the disc around the star equivalent to the orbit of the asteroid belt around the Earth's sun, according to the researchers. Eric Lagatta, USA Today, 18 July 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 30 Sep. 2025.

Kids Definition

asteroid belt

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

More from Merriam-Webster on asteroid belt

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