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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use poison ivy in a sentence
It was a long, slow paddle, followed by a climb across the poison ivy–invested island, but sure enough, there was a tiny wave breaking over some barely submerged rocks.
Made with 100% natural colloidal oatmeal, this dermatologist-recommended skin treatment creates a milky bath that relieves itch and irritation due to poison ivy, insect bites, sunburn, eczema, and more.Healthy SKINvestigation: Uncovering Eczema on Melanated Skin | Steven Psyllos | June 25, 2021 | Essence.com
A 2019 survey and analysis commissioned by the Park Service reported that American campers’ most common frustration isn’t bugs or bad weather or poison ivy but simply the difficulty of finding a place to camp.
The bully showed up to take their lunch money, except he was wearing his underwear over his pants, and then he fell down a manhole into a pit of mousetraps atop a pile of Whoopee cushions, which were covered in poison ivy.Browns shake off their history, secure first playoff win since 1995 | Adam Kilgore, Des Bieler | January 11, 2021 | Washington Post
A month later, a package arrived: two boxes filled with poison ivy and Batgirl!
Leaves and flowers of the poison ivy plant were extracted with ether and the ether was removed by evaporation.Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron) | William Anderson Syme
She will crop the poison ivy with impunity, and I think would eat thistles if she found them growing in the garden.A Year in the Fields | John Burroughs
Look at the poison-ivy, but do not touch it, and you will see it climbing over tree-trunks and fence-posts by means of rootlets.Harper's Round Table, August 20, 1895 | Various
Aunt Katrina lived under the impression that everything that came from the woods was poison-ivy.East Angels | Constance Fenimore Woolson
Do poison-ivy and Virginia creeper belong to the same family?A Little Garden Calendar for Boys and Girls | Albert Bigelow Paine
British Dictionary definitions for poison ivy
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 contact: See also sumach (def. 1)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012