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poison oak

DEFINITIONS OF: poison oak

1

n 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

Synonyms:
Rhus radicans, Toxicodendron radicans, markweed, poison ivy, poison mercury
Type of:
poisonous plant
a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism

n dermatitis resulting from contact with a poison oak plant

Type of:
Rhus dermatitis
contact dermatitis resulting from contact with plants of the genus Toxicodendron
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