micrometeorite
noun
mi·cro·me·te·or·ite
ˌmī-krō-ˈmē-tē-ə-ˌrīt 
1
: a meteorite so small that it can pass through the earth's atmosphere without becoming intensely heated
2
: a very small particle in interplanetary space
Examples of micrometeorite in a Sentence
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The other idea is that a micrometeorite hit the satellite, releasing a small cloud of plasma and radio waves.
—
Sara Hashemi, Smithsonian Magazine, 27 June 2025
Another possibility is that a collision with a micrometeorite produced an observable spark and radio signal, though these flashes, too, are typically longer than the burst observed by the team.
—Sam Walters, Discover Magazine, 26 June 2025
Collecting Cosmic Dust The researchers have a guess to explain this phenomenon; other irregular satellites with large orbits around Uranus are constantly struck with a barrage of micrometeorites, emitting dust that gradually moves inward toward the planet.
—Jack Knudson, Discover Magazine, 11 June 2025
These outer moons are constantly bombarded by micrometeorites, which kick up particles that gradually spiral inward over millions of years, Soto said.
—Sharmila Kuthunur, Space.com, 11 June 2025
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Sara Hashemi, Smithsonian Magazine, 27 June 2025
Another possibility is that a collision with a micrometeorite produced an observable spark and radio signal, though these flashes, too, are typically longer than the burst observed by the team.
—Sam Walters, Discover Magazine, 26 June 2025
Collecting Cosmic Dust The researchers have a guess to explain this phenomenon; other irregular satellites with large orbits around Uranus are constantly struck with a barrage of micrometeorites, emitting dust that gradually moves inward toward the planet.
—Jack Knudson, Discover Magazine, 11 June 2025
These outer moons are constantly bombarded by micrometeorites, which kick up particles that gradually spiral inward over millions of years, Soto said.
—Sharmila Kuthunur, Space.com, 11 June 2025
See All Example Sentences for micrometeorite
Cite this Entry
“Micrometeorite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micrometeorite. Accessed 10 Jul. 2025.
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micrometeorite
noun
mi·cro·me·te·or·ite
ˌmī-krō-ˈmēt-ē-ə-ˌrīt
: a very small particle in space
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