1. (noun) smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil

• poison ash
• poison dogwood
• rhus vernix
• toxicodendron vernix

1. (noun) smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil

• genus toxicodendron
• toxicodendron

1. (noun) dermatitis resulting from contact with a poison sumac plant

• rhus dermatitis

2. (noun) smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil

• poisonous plant