poison sumac
noun
a shrub or small tree, Rhus vernix (or Toxicodendron vernix), of swampy areas of the eastern U.S., having pinnate leaves and causing severe dermatitis when touched by persons sensitive to it.
Also called
poison dogwood.
Origin of poison sumac
First recorded in 1810–20
Words nearby poison sumac
poison haw,
poison hemlock,
poison ivy,
poison oak,
poison pill,
poison sumac,
poison sumach,
poison-arrow frog,
poison-pen,
poison-pen letter,
poisoning
Medical definitions for poison sumac
poison sumac
n.
A swamp shrub of the southeast United States, having compound leaves and greenish-white berries and causing an itching rash on contact with the skin.