Pronunciation: (stef'un bōlts'mun; Ger. shte'fän bôlts'män), [key] Physics.
the law stating that the total energy radiated from a blackbody is proportional to the fourth power of its absolute temperature. Also called Ste'fan's law' of radia'tion.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.