/ Dictionary / Index P permanganic acid: Meaning and Definition of Find definitions for: per'mangan'ic ac'id Pronunciation: [key] — Chem. Chem. an acid, HMnO, known only in solution. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. permanganic perma-press Related Content Daily Word Quiz: topography Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language