|
Definition of Poison oak
1. Noun. Dermatitis resulting from contact with a poison oak plant.
Generic synonyms: Rhus Dermatitis
2. Noun. Climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating oil that causes a rash on contact.
Exact synonyms: Markweed, Poison Ivy, Poison Mercury, Rhus Radicans, Toxicodendron Radicans
Group relationships: Genus Toxicodendron, Toxicodendron
Generic synonyms: Poisonous Plant
Group relationships: Genus Toxicodendron, Toxicodendron
Generic synonyms: Poisonous Plant
Medical Definition of Poison oak
1. Poison oak is a form of contact dermatitis or inflammation of the skin resulting from chemicals produced from the poison oak plant contacting the skin. The chemicals cause an immune reaction producing redness, itching and blistering of the skin. (12 Dec 1998)