Open English Wordnet
Nouns
(n)poison ivydermatitis resulting from contact with the poison ivy plant“my poison ivy is drying up”
(n)poison ivy, markweed, poison mercury, poison oak, Toxicodendron radicans, Rhus radicansclimbing 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