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poison ivy Definition

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poison ivy
noun(poison ivy)
a climbing plant (Toxicodendron radicans synonym Rhus radicans) of the cashew family that is especially common in the eastern and central U.S., that has ternate leaves, greenish flowers, and white berries, and that produces an irritating oil causing a usually intensely itching skin rash
poison ivy
noun(poison ivy)
any of several plants closely related to poison ivy
poison ivy
noun(poison ivy)
a skin rash caused by poison ivy

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