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 pubescens synonym Rhus toxicodendron) chiefly of the southeastern U.S.
Examples of poison oak in a Sentence
Recent Examples on the Web
Interesting side note: Mugwort tends to grow next to poison oak.
—
Jeanette Marantos, Los Angeles Times, 3 Nov. 2024
Similar elastic bands at the ankles make for a secure fit, perfect for pulling over socks in areas where the poison ivy or poison oak hasn’t died back yet or to limit your chances of ticks.
—Alice Bennett, Travel + Leisure, 28 Sep. 2024
Like its cousins, poison oak and poison ivy, poison sumac contains urushiol in every part of the plant, but is more toxic.
—Leanne Potts, Better Homes & Gardens, 28 Sep. 2024
Itching and stinging: Breast milk has been used on the skin to relieve the sting and itching of insect bites, bee stings, chicken pox, poison ivy, poison oak, and poison sumac.
—Donna Murray, Rn, Parents, 29 July 2024
See all Example Sentences for poison oak 
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Jeanette Marantos, Los Angeles Times, 3 Nov. 2024
Similar elastic bands at the ankles make for a secure fit, perfect for pulling over socks in areas where the poison ivy or poison oak hasn’t died back yet or to limit your chances of ticks.
—Alice Bennett, Travel + Leisure, 28 Sep. 2024
Like its cousins, poison oak and poison ivy, poison sumac contains urushiol in every part of the plant, but is more toxic.
—Leanne Potts, Better Homes & Gardens, 28 Sep. 2024
Itching and stinging: Breast milk has been used on the skin to relieve the sting and itching of insect bites, bee stings, chicken pox, poison ivy, poison oak, and poison sumac.
—Donna Murray, Rn, Parents, 29 July 2024
See all Example Sentences for poison oak
Dictionary Entries Near poison oak
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“Poison oak.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/poison%20oak. Accessed 17 Nov. 2024.
Copy CitationMedical Definition
poison oak
noun
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
3
: a skin rash produced by poison oak
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