potash alum pot arch • potash feldspar · · · Info · Definitions · Synonyms · Characters · · potash alum · · Text Common · · Latin · · Scripts 11 · · Length Definitions · · · (noun) a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum. Synonyms: alum, potassium alum. · · Noun Definition 1 Synonyms · · · potash · · Synonym 1 caustic potash · · Synonym 2 potassium hydroxide · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 h latin small letter h U+0068 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