单词	poison oak
释义	poison oak noun 1 : any of several plants related to poison ivy and producing an oil with similar irritating properties: such as a : a bushy plant (Toxicodendron diversilobum synonym Rhus diversiloba) of the Pacific coast b : a bushy plant (Toxicodendron toxicarium synonym Rhus toxicodendron) chiefly of the southeastern U.S. 2 : poison ivy sense 1a Example Sentences Recent Examples on the Web This sap, which is also found in poison oak and poison sumac, is called urushiol and can cause a severe rash that lingers for weeks. Rachel Nall, Msn, SELF, 15 July 2022 Along with the great blue heron perched regally on a branch, there were possibly leeches in that water, not to mention poison oak lining the banks. Los Angeles Times, 17 July 2022 How on earth could poison oak be used to treat pain? Steven Salzberg, Forbes, 25 July 2022 Some other skin symptoms that may look like a reaction to poison ivy include: Reactions to similar plants that contain urushiol, such as poison oak. Rachel Nall, Msn, SELF, 15 July 2022 Therapeutic properties ascribed to the sulfur and other minerals in the springs include supposedly helping cure skin diseases, digestive disorders, arthritis, sore muscles, and poison oak. Perri Ormont Blumberg, Travel + Leisure, 13 Feb. 2022 As temperatures rise in California due to climate change, scientists expect poison oak to become even more abundant. Justin Ray, Los Angeles Times, 21 Dec. 2021 It’s blackberry season in the country, and the poison oak turns from an oily green to bright red, so that nasty plant is almost beautiful. Carl Nolte, San Francisco Chronicle, 11 Sep. 2021 The best way to deal with poison oak is to avoid getting it in the first place. Justin Ray, Los Angeles Times, 21 Dec. 2021 See More Word History First Known Use 1739, in the meaning defined at sense 1 Kids Definition poison oak noun : a bush related to poison ivy that can cause an itchy painful rash when touched Medical Definition poison oak noun -ˈōk  1 : any of several plants included in the genus Rhus or sometimes in the genus Toxicodendron that produce an irritating oil like that of poison ivy: a : a bushy plant (R. diversiloba synonym T. diversilobum) of the Pacific coast b : a bushy plant (R. toxicodendron synonym T. pubescens) of the southeastern United States 2 : poison ivy sense 1a 3 : a skin rash produced by poison oak
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