/ Dictionary / Index H hydrobromic acid: Meaning and Definition of Find definitions for: hy'drobro'mic ac'id Pronunciation: [key] a colorless or faintly yellow corrosive liquid, HBr, an aqueous solution of hydrogen bromide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hydrobromic hydrobromide Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language