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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Another study, published in the journal Nature Geoscience, highlights how Bennu's airless surface has been shaped by space weathering, including tiny micrometeorite impacts and the solar wind.
—
Sharmila Kuthunur, Space.com, 2 Sep. 2025
And the starshade itself would be quite fragile; a tiny micrometeorite passing through it could be catastrophic, as allowing even a tiny bit of starlight through an imperfection could dwarf the critically necessary signal of the target planet.
—Ethan Siegel, Big Think, 5 Aug. 2025
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
Finally, most of the meteorites that do strike the planet are, by the time of impact, micrometeorites—too small to do any damage at all.
—Jeffrey Kluger, Time, 27 June 2025
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Sharmila Kuthunur, Space.com, 2 Sep. 2025
And the starshade itself would be quite fragile; a tiny micrometeorite passing through it could be catastrophic, as allowing even a tiny bit of starlight through an imperfection could dwarf the critically necessary signal of the target planet.
—Ethan Siegel, Big Think, 5 Aug. 2025
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
Finally, most of the meteorites that do strike the planet are, by the time of impact, micrometeorites—too small to do any damage at all.
—Jeffrey Kluger, Time, 27 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 9 Sep. 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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