/ Dictionary / Index A alpha brass: Meaning and Definition of Find definitions for: al'pha brass" Pronunciation: [key] any alloy of copper and zinc, a homogeneous solid solution containing more than 64 percent copper. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. alpha blocker Alpha Centauri Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language