cosmic background radiation

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cosmic background radiation > noun, phenomenon
Meaning	(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
Category	cosmology, cosmogony, cosmogeny
Broader	cosmic radiation