Usually means: Random noise from outer space.
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We found 10 dictionaries that define the word cosmic noise:

General (7 matching dictionaries)
  1. cosmic noise: Merriam-Webster
  2. cosmic noise: American Heritage Dictionary of the English Language
  3. cosmic noise: The Wordsmyth English Dictionary-Thesaurus
  4. cosmic noise: Infoplease Dictionary
  5. cosmic noise: Dictionary.com
  6. Cosmic noise: Wikipedia, the Free Encyclopedia
  7. cosmic noise: TheFreeDictionary.com

Computing (2 matching dictionaries)
  1. cosmic noise, Cosmic noise: Encyclopedia

Tech (1 matching dictionary)
  1. SOLAR-TERRESTRIAL TERMS (No longer online)

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Definitions from Wikipedia (Cosmic noise)

▸ noun:  Cosmic noise, also known as galactic radio noise, is a physical phenomenon derived from outside of the Earth's atmosphere.


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