rheum palmatum rheuminess • rheum rhabarbarum · · · Info · Definitions · Characters · · rheum palmatum · · Text Common · · Latin · · Scripts 14 · · Length 5 · · Syllables Definitions · · · (noun) long used for laxative properties. Synonyms: Chinese rhubarb, Rheum palmatum. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C m latin small letter m U+006D p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075