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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MBAs are asteroids that orbit the sun within the asteroid belt, a region located between the orbits of Mars and Jupiter, about 2.1 to 3.3 astronomical units (roughly 195 to 307 million miles) from our star. George Monastiriakos, Newsweek, 30 Dec. 2024 The main asteroid belt is the most likely source of near-Earth objects, but such objects remain on their current orbits only for about 10 million years. Jamie Carter, Forbes, 10 Dec. 2024 Most asteroids orbit within the main asteroid belt between the orbits of Mars and Jupiter. Eric Lagatta, USA TODAY, 4 Dec. 2024 This comet is located in the asteroid belt between Mars and Jupiter. Zhenbo Wang, Discover Magazine, 31 Dec. 2024 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

Dictionary Entries Near asteroid belt

Cite this Entry

“Asteroid belt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/asteroid%20belt. Accessed 22 Jan. 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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