CMB

Definitions of CMB
  1. noun
    (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, CMBR, cosmic background radiation, cosmic microwave background, cosmic microwave background radiation
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    type of:
    cosmic radiation
    radiation coming from outside the solar system
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