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poison ivy
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noun
a vine or shrub, Rhus radicans, having trifoliate leaves and whitish berries and causing severe dermatitis when touched by persons sensitive to it.
the rash caused by touching poison ivy.
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Origin of poison ivy
An Americanism dating back to 1775–85
Words nearby poison ivy
poison dogwood, poison gas, poison haw, poison hemlock, poisoning, poison ivy, poison oak, poisonous, poison-pen, poison-pen letter, poison pill
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use poison ivy in a sentence
British Dictionary definitions for poison ivy
poison ivy
noun
any of several North American anacardiaceous shrubs or vines of the genus Rhus (or Toxicodendron), esp R. radicans, which has small green flowers and whitish berries that cause an itching rash on contactSee also sumach (def. 1)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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