/ Dictionary / Index B Brattain: Meaning and Definition of Find definitions for: Brat•tain Pronunciation: (brat'n), [key] born 1902, U.S. physicist: Nobel prize 1956. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Bratsk brattice Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language