Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun cbr

1 sense of cbr

Sense 1
cosmic background radiation, CBR, cosmic microwave background radiation, CMBR, cosmic microwave background, CMB -- ((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)
       => cosmic radiation -- (radiation coming from outside the solar system)