cosmic microwave background radiation definition

  • noun:
    • (cosmology) the cooled remnant of the hot big-bang that fills the complete world and that can be observed today with the average heat of about 2.725 kelvin
    • (cosmology) the cooled remnant of the hot big-bang that fills the whole world and can be viewed today with the average temperature around 2.725 kelvin

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  • Hypernym for "cosmic microwave background radiation"
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