OXFORD 9000
📚 noun • entry_id 36030

urushiol

/ʊˈɹuːʃiˌɔl/
Meanings (ES + gloss)
urushiol
An oil found in plants of the family Anacardiaceae, causing an allergic skin rash on contact; consists of a variable mixture of several related organic compounds.
All three produce an oil, called urushiol, that is a potent allergen. Urushiol is most abundant in the leaves and stems of these plants...
Poison ivy vines also contain the irritating oil urushiol, so it is important to be able to recognize them in winter.
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