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
Recent Examples on the Web
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
This lack of shielding also makes the chip more vulnerable to impacts with micrometeorites, which zip at high speed throughout the solar system.
—IEEE Spectrum, 28 July 2011
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
See All Example Sentences for micrometeorite
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Jeffrey Kluger, Time, 27 June 2025
This lack of shielding also makes the chip more vulnerable to impacts with micrometeorites, which zip at high speed throughout the solar system.
—IEEE Spectrum, 28 July 2011
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
See All Example Sentences for micrometeorite
Cite this Entry
“Micrometeorite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micrometeorite. Accessed 30 Jul. 2025.
Copy CitationKids Definition
micrometeorite
noun
mi·cro·me·te·or·ite
ˌmī-krō-ˈmēt-ē-ə-ˌrīt
: a very small particle in space
Love words? Need even more definitions?
Merriam-Webster unabridged
Share