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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The theory is that 16 Psyche, which lies in the asteroid belt between Mars and Jupiter, may be made of precious metals that, on Earth, would be worth more than the entire world economy. Monisha Ravisetti, Space.com, 20 May 2026 But what about spacecraft flying on more well-trodden paths to the Moon, Mars, Venus, or the asteroid belt? Stephen Clark, ArsTechnica, 19 May 2026 Exact size unknown The asteroid originates from the asteroid belt, an area between Mars and Jupiter, Binzel explained. Jacopo Prisco, CNN Money, 18 May 2026 Coming within just a few thousand miles of the red planet's surface, the Psyche vehicle will benefit from a gravity boost that will send it whizzing toward the main asteroid belt between Mars and Jupiter. Eric Lagatta, USA Today, 15 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 24 May. 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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