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Poison oak
noun
Definitions
Noun
- 1 Any of the species of Toxicodendron with compound leaves having three oak-like leaflets, native to North America. uncountable, usually
- 2 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 wordnet
- 3 dermatitis resulting from contact with a poison oak plant wordnet
Etymology
Its leaves resemble those of the true oaks, and the leaves and twigs contain urushiol, which can cause allergic reactions.
See also for "poison oak"
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