Stefan-Boltzmann law

[ stef-uh n bohlts-muh n; German shte-fahn bawlts-mahn ]
/ ˈstɛf ən ˈboʊlts mən; German ˈʃtɛ fɑn ˈbɔlts mɑn /

noun Physics.

the law stating that the total energy radiated from a blackbody is proportional to the fourth power of its absolute temperature.
Also called Stefan's law of radiation.

Origin of Stefan-Boltzmann law

1895–1900; named after Josef Stefan (1835–93) and Ludwig E. Boltzmann (1844–1906), Austrian physicists, who independently formulated the law