What is the meaning of cosmic background radiation?

Cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2. 725 kelvin. (.
- synonyms: CBR, cosmic microwave background radiation, CMBR, cosmic microwave background, CMB

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APA	WordNet. (2010). cosmic background radiation. Retrieved September 26, 2026, from http://smartdefine.org/cosmic_background_radiation/definitions/1235504
Chicago	WordNet. 2010. "cosmic background radiation" http://smartdefine.org/cosmic_background_radiation/definitions/1235504 (accessed September 26, 2026).
Harvard	WordNet 2010, cosmic background radiation, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/cosmic_background_radiation/definitions/1235504>.
MLA	WordNet. "cosmic background radiation" 23 October 2010. Web. 26 September 2026. <http://smartdefine.org/cosmic_background_radiation/definitions/1235504>

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