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Wiktionary The Free Dictionary

cosmic microwave background

From Wiktionary, the free dictionary

English

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Temperature map of the cosmic microwave background measured by the Planck spacecraft.

Etymology

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It was originally called the primeval fireball.

Pronunciation

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Noun

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cosmic microwave background (uncountable , abbreviation CMB )

  1. (astronomy ) Faint thermal radiation that pervades all space and is thought to be the remnants of the Big Bang, produced during the epoch of recombination.
    Alternative form: CμB
    Holonyms: cosmic background , cosmic background radiation < electromagnetic radiation < radiation
    Comeronyms: CIRB , CIB , cosmic infrared background ; CNB , CνB , CvB , cosmic neutrino background ; CGWB , CGB , cosmic gravitational-wave background

Translations

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