/ Dictionary / Index P phosphoric: Meaning and Definition of Find definitions for: phos•phor•ic Pronunciation: (fos-fôr'ik, -for'-), [key] — adj. Chem. of or containing phosphorus, esp. in the pentavalent state. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: phosphoric (Thesaurus) phosphoreted phosphoric acid Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language