triphosphoric acid triphosphopyridine nucleotide • triphthong · · · Info · Definitions · Characters · · triphosphoric acid · · Text Common · · Latin · · Scripts 18 · · Length 6 · · Syllables Definitions · · · (noun) an acid that is a partial anhydride of three molecules of phosphoric acid; known chiefly in the form of its salts and esters. Synonyms: triphosphoric acid. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 h latin small letter h U+0068 i latin small letter i U+0069 o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074