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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Example Sentences

The university said the pits may be connected to underground cave networks that could provide natural shelter from harmful radiation and micrometeorite impacts, as well as harbour water ice.

From BBC

"We proposed that tiny meteorites, called micrometeorites, containing ammonia compounds were delivered from icy celestial bodies and collided with Ryugu," said Toru Matsumoto, lead author of the study and assistant professor at Kyoto University.

From Science Daily

Members of the School of Physics and Astronomy from the University of Kent are hoping to find micrometeorites - dust sized particles which have made it through the earth's atmosphere.

From BBC

Though Roscosmos said the information was undergoing analysis, the agency reported that the preliminary data obtained contained information about the chemical elements of the lunar soil and that its equipment had registered a “micrometeorite impact.”

From Seattle Times

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

From Reuters