micrometeorite

American  

[mahy-kroh-mee-tee-er-ahyt] / ˌmaɪ kroʊˈmi ti ərˌaɪt /

noun

plural

micrometeorites

1. Geology. a micrometeoroid that has traveled through Earth's atmosphere and fallen to the ground.

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micrometeorite British  

/ ˌmaɪkrəʊˈmiːtɪəˌraɪt /

noun

1. a tiny meteorite having a diameter of 10–40 micrometres, found esp in rainwater and seawater, having entered the atmosphere as a micrometeoroid (extremely small meteoroid)

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Other Word Forms

• micrometeoritic adjective

Example Sentences

Grimes said it was almost impossible to see a micrometeorite with the naked eye.

From BBC • Apr. 4, 2026

"The micrometeorite collisions trigger chemical reactions on magnetite and lead to the formation of the iron nitride."

From Science Daily • Dec. 1, 2023

It added that its equipment had registered "the event of a micrometeorite impact".

From Reuters • Aug. 19, 2023

Roscosmos said the leak might have been caused by a micrometeorite or a piece of space junk striking one of the capsule’s external radiators.

From Seattle Times • Dec. 19, 2022

“Everything at the surface is subject to harsh radiation, possible meteorite or micrometeorite bombardment and really large day-to-night temperature swings,” she said.

From New York Times • Oct. 29, 2022