micrometeorite

noun

mi·cro·me·te·or·ite ˌmī-krō-ˈmē-tē-ə-ˌrīt

: a meteorite so small that it can pass through the earth's atmosphere without becoming intensely heated

: a very small particle in interplanetary space

micrometeoritic

ˌmī-krō-ˌmē-tē-ə-ˈri-tik

adjective

Examples of micrometeorite in a Sentence

Recent Examples on the Web

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.

Scientists have long known that the moon’s surface is altered by both micrometeorite impacts and solar wind. — Neetika Walter, Interesting Engineering, 10 June 2026 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 But don’t forget about those pesky micrometeorites—pebble-size rocks that move like hypersonic bullets. — Robin George Andrews, Scientific American, 19 May 2026 Segretto has already provided a few photos of the micrometeorites. — Gillian Stawiszynski, Cincinnati Enquirer, 3 Dec. 2025 See All Example Sentences for micrometeorite

Word History

First Known Use

1949, in the meaning defined at sense 1

Time Traveler

The first known use of micrometeorite was in 1949

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Browse Nearby Words

micromesentery

micrometeorite

micrometeoroid

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Cite this Entry

Style

“Micrometeorite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micrometeorite. Accessed 7 Jul. 2026.

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Kids Definition

micrometeorite

noun

mi·cro·me·te·or·ite ˌmī-krō-ˈmēt-ē-ə-ˌrīt

: a very small particle in space

micrometeorite

noun

Examples of micrometeorite in a Sentence

Word History

Browse Nearby Words

Cite this Entry

Kids Definition

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