| NOUN | phenomenon | CMB, cosmic background radiation, CBR, cosmic microwave background radiation, CMBR, cosmic microwave background | (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 |
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| 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. | |
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| Synonyms | cosmic background radiation, CBR, cosmic microwave background radiation, CMBR, cosmic microwave background | |
| Category | cosmology, cosmogony, cosmogeny | The branch of astrophysics that studies the origin and evolution and structure of the universe |
| Broader | cosmic radiation | Radiation coming from outside the solar system |
| Catalan | radiació còsmica de fons | |
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