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

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

Meanwhile, the infrared components illustrate the explosion’s growing shell filled with cosmic dust. — Andrew Paul, Popular Science, 2 July 2026

Interstellar space contains a sparse smattering of hydrogen atoms and microscopic grains of cosmic dust. — Kai James, The Conversation, 26 May 2026

Word History

First Known Use

1881, in the meaning defined above

Rhymes for cosmic dust

• antitrust
• overthrust
• readjust
• unitrust
• wanderlust
• adjust
• combust
• discussed
• disgust
• distrust
• entrust
• intrust

Kids Definition

cosmic dust

noun

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