poison ash poison arrow plant • poisonberry · · · Info · Definitions · Synonyms · Characters · · poison ash · · Text Common · · Latin · · Scripts 10 · · Length 3 · · Syllables Definitions · · · (noun) smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil. Synonyms: poison ash, poison dogwood, poison sumac, Toxicodendron vernix, Rhus vernix. · · Noun Definition 1 Synonyms · · · poison dogwood · · Synonym 1 poison sumac · · Synonym 2 toxicodendron vernix · · Synonym 3 rhus vernix · · Synonym 4 Characters · · space U+0020 a latin small letter a U+0061 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073