cosmic dust

noun

: very fine particles of solid matter found in any part of the universe

Examples of cosmic dust 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.
Hinds’ voice returns at the end to ask as the iconic lion, Aslan (who will be voiced by Meryl Streep), is formed out of some sort of cosmic dust to roar. — Dessi Gomez, Deadline, 13 Oct. 2026 Karyu and his team used a microphysical simulation to show how cosmic dust forms the lower haze. — Elizabeth Rayne, ArsTechnica, 1 Oct. 2026 Unlike visible light, radio waves at this wavelength can pass through significant amounts of cosmic dust, allowing scientists to observe gas that may otherwise remain hidden. — Prabhat Ranjan Mishra, Interesting Engineering, 10 Sep. 2026 Parker does not carry a cosmic dust detector, and that's because until now dust has not been considered a serious component of the solar atmosphere. — Keith Cooper, Space.com, 7 July 2026 See All Example Sentences for cosmic dust

Word History

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of cosmic dust was in 1881

Rhymes for cosmic dust

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Browse Nearby Words

cosmic background radiation
cosmic dust
cosmic microwave background
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Cite this Entry

“Cosmic dust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmic%20dust. Accessed 20 Oct. 2026.

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Kids Definition

cosmic dust

noun
: very fine particles of solid matter found in any part of the universe
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