Einstein: Meaning and Definition of
Ein•stein
Pronunciation: (īn'stīn Ger. īn'shtīn&sec), [key]
— n.
- 1879–1955, German physicist, U.S. citizen from 1940: formulator of the theory of relativity; Nobel prize 1921.
- 1880–1952, German musicologist in U.S.
- (l.c.)a unit of radiant energy, equal to the energy of radiation that is capable of photochemically changing one mol of a photosensitive substance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.