poison oak   (TTS Sound)

The noun poison oak has 2 senses

• poison oak -- (dermatitis resulting from contact with a poison oak plant)


• poison ivy, markweed, poison mercury, poison oak, Toxicodendron radicans, Rhus radicans -- (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)