/ Dictionary / Index M muriatic: Meaning and Definition of Find definitions for: mu•ri•at•ic Pronunciation: (myoor"ē-at'ik), [key] — adj. (not in scientific use) of or derived from muriatic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. muriate muriatic acid Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language