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
Researchers estimate that about 5,000 metric tons of micrometeorites land on Earth annually.
—
Patrick M. Shober, The Conversation, 14 Apr. 2025
The pit, which is collapsed on one side, could potentially provide an easy-to-access shelter that could shield future lunar explorers from radiation and micrometeorites.
—IEEE Spectrum, 30 Dec. 2014
Research published in the journal Icarus in 2023 looked at the accumulation rate of dark micrometeorite dust on the otherwise shiny rings and found that the rings were young, cosmically speaking: just 100 million to 400 million years in age.
—Phil Plait, Scientific American, 23 Jan. 2025
Space isn't for the weak; it's filled with radiation, micrometeorites, and who knows what else.
—Monisha Ravisetti, Space.com, 16 Jan. 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.
Patrick M. Shober, The Conversation, 14 Apr. 2025
The pit, which is collapsed on one side, could potentially provide an easy-to-access shelter that could shield future lunar explorers from radiation and micrometeorites.
—IEEE Spectrum, 30 Dec. 2014
Research published in the journal Icarus in 2023 looked at the accumulation rate of dark micrometeorite dust on the otherwise shiny rings and found that the rings were young, cosmically speaking: just 100 million to 400 million years in age.
—Phil Plait, Scientific American, 23 Jan. 2025
Space isn't for the weak; it's filled with radiation, micrometeorites, and who knows what else.
—Monisha Ravisetti, Space.com, 16 Jan. 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 23 May. 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