poison sumac
1. dermatitis resulting from contact with a poison sumac plant • Hypernyms: Rhus dermatitis 2. smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil • Syn: poison ash, poison dogwood, Toxicodendron vernix, Rhus vernix • Hypernyms: poisonous plant • Member Holonyms: Toxicodendron, genus Toxicodendron
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