micrometeor

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Definitions from WordNet

Noun micrometeor has 1 sense

micrometeorite, micrometeoroid, micrometeor - a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere
--₁ is a kind of meteorite

Definitions from the Web

Micrometeor

A micrometeor refers to a small meteoroid that enters a planet's atmosphere and burns up before reaching the surface.

Definitions:

Noun: A small particle of extraterrestrial matter, often smaller than a grain of sand, that enters the Earth's atmosphere and vaporizes upon contact.
Verb: To be subjected to the impact or effects caused by micrometeoroids.

Examples:

Astronomers study micrometeors to better understand the composition and behavior of objects in space.
The International Space Station is equipped with shields to protect it from micrometeor impacts.

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