cosmic noise
noun
: unidentified celestial radio-frequency radiation
especially
: such radiation originating from outside the Milky Way
Examples of cosmic noise in a Sentence
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Every few seconds the players pause for a moment, perhaps listening for cosmic noise.
—
Jeffrey Gantz, BostonGlobe.com, 22 Oct. 2022
And the near-vacuum of space is filled with low-level ambient radio emanations, known as cosmic noise, which come from distant quasars, the sun, and the center of our Milky Way galaxy.
—Sven Bilén, IEEE Spectrum, 23 July 2020
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Jeffrey Gantz, BostonGlobe.com, 22 Oct. 2022
And the near-vacuum of space is filled with low-level ambient radio emanations, known as cosmic noise, which come from distant quasars, the sun, and the center of our Milky Way galaxy.
—Sven Bilén, IEEE Spectrum, 23 July 2020
Cite this Entry
“Cosmic noise.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmic%20noise. Accessed 14 Feb. 2026.
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