mercurialis perennis mercurialis annua • mercurialism · · · Info · Definitions · Synonyms · Characters · · mercurialis perennis · · Text Common · · Latin · · Scripts 20 · · Length 8 · · Syllables Definitions · · · (noun) European perennial weedy plant with greenish flowers. Synonyms: dog's mercury, dog mercury, Mercurialis perennis. · · Noun Definition 1 Synonyms · · · dog's mercury · · Synonym 1 dog mercury · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075