/ Dictionary / Index L low brass: Meaning and Definition of Find definitions for: low' brass' Pronunciation: [key] an alloy of about 80 percent copper and 20 percent zinc, with traces of lead and iron. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lowboy lowbred Related Content Daily Word Quiz: lyre Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language