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All the electromagnetic radiation entering the Earth from non-point sources in deep space, generally attributed to the Big Bang.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: astronomy, natural-sciences
Examples
- Holonyms: electromagnetic radiation < radiation
- Meronyms: CMB, CμB, cosmic microwave background; CIRB, CIB, cosmic infrared background; CNB, CνB, CvB, cosmic neutrino background; CGWB, CGB, cosmic gravitational-wave background
Meaning relationships
Synonyms: cosmic background
Antonyms: none provided
Broader terms: electromagnetic radiation, radiation
(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
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: CBR, cosmic microwave background radiation, CMBR, cosmic microwave background, CMB
Antonyms: none provided
Broader terms: cosmic radiation
No etymology was provided for this word.
Across languages
Translations
2 source translations are retained for this English entry.
-
Irish:
radaíocht chúlra chosmach
— Translations
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Polish:
kosmiczne promieniowanie tła
— Translations
