( (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)
mikrofalowe promieniowanie tła, kosmiczne promieniowanie tła, promieniowanie reliktowe, promieniowanie szczątkowe
synonim: cosmic background radiation
synonim: CBR
synonim: cosmic microwave background radiation
synonim: CMBR
synonim: CMB