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Definitions

cosmic dust

NOUN
small particles of matter found in outer space
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A study published on November 6 in Science shows that identifying where this cosmic dust appears, and where it is missing, offers clues about how sea ice coverage has changed over thousands of years.

From Science Daily • Nov. 13, 2025

"You've got this small amount of cosmic dust raining down everywhere, but you've also got Earth sediments accumulating pretty fast."

From Science Daily • Nov. 13, 2025

Unlike visible light, radio waves from hot gasses are not blocked that easily by cosmic dust.

From Space Scoop • Mar. 27, 2025

Most of the emitted light, for example visible light and X-ray, get blocked by thick layers of cosmic dust and can’t pass through the accretion disk around them.

From Space Scoop • Mar. 27, 2025

He felt as free and easy as a hobo with cosmic dust in his hair.

From The Planet Strappers by Gallun, Raymond Z.



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