Meanings
- uncountableastronomyAll the electromagnetic radiation entering the Earth from non-point sources in deep space, generally attributed to the Big Bang.
Holonyms: electromagnetic radiation < radiation
1 more example
Meronyms: CMB, CμB, cosmic microwave background; CIRB, CIB, cosmic infrared background; CNB, CνB, CvB, cosmic neutrino background; CGWB, CGB, cosmic gravitational-wave background
Synonyms: cosmic background
Synonyms & antonyms
nounAll the electromagnetic radiation entering the Earth from non-point sources in deep space, generally attributed to the Big Bang.
More synonyms by meaning
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
Synonym sets from Open English WordNet, CC BY 4.0.
Translations
Finnish kosminen taustasäteily
- kosminen taustasäteilyTranslations
Irish radaíocht chúlra chosmach
- radaíocht chúlra chosmachTranslations
Polish kosmiczne promieniowanie tła
- kosmiczne promieniowanie tłaTranslations
Cite this entry
cosmic background radiation. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/cosmic%20background%20radiation
“cosmic background radiation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cosmic%20background%20radiation. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “cosmic background radiation,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/cosmic%20background%20radiation.
Source: cosmic background radiation on Wiktionary, CC BY-SA 4.0.