/ Dictionary / Index P propanedioic: Meaning and Definition of Find definitions for: pro•pane•di•o•ic Pronunciation: (prō"pān-dī-ō'ik), [key] — adj. Chem. malonic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. propane propanil Related Content Daily Word Quiz: reluctant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language