potassium alum potassium acid tartrate • potassium amide · · · Info · Definitions · Synonyms · Characters · · potassium alum · · Text Common · · Latin · · Scripts 14 · · Length Definitions · · · (noun) a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum. Synonyms: alum, potash alum. · · Noun Definition 1 Synonyms · · · potassium · · Synonym 1 k · · Synonym 2 atomic number 19 · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075