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Irritant in poison ivy
Answer for the clue "Irritant in poison ivy ", 8 letters:
urushiol
Word definitions for urushiol in dictionaries
Wikipedia
Word definitions in Wikipedia
Urushiol is an oily organic allergen found in plants of the family Anacardiaceae , especially Toxicodendron spp. (e.g., poison oak , Lacquer Tree , poison ivy , poison sumac ) and also in parts of the mango tree . In sensitive individuals, urushiol can ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Poison \Poi"son\, n. [F. poison, in Old French also, a potion, fr. L. potio a drink, draught, potion, a poisonous draught, fr. potare to drink. See Potable , and cf. Potion .] Any agent which, when introduced into the animal organism, is capable of producing ...
Wiktionary
Word definitions in Wiktionary
n. (context organic chemistry English) An oil found in plants of the family ''Anacardiaceae'', causing an allergic skin rash on contact; consists of a variable mixture of several organic compounds.