a poisonous, irritant liquid, CHO, present in poison ivy, poison sumac, etc.
Origin of urushiolJapanese urushi, lac tree, lacquer + -ol: coined (1907) by Toshiyuki Mashima, who isolated it
An oily, toxic substance composed of phenolic compounds that is present in the sap of various plants of the family Anacardiaceae and especially the genus Toxicodendron, including poison ivy, poison sumac, and the lacquer tree.
Origin of urushiolJapanese urushi lacquer -ol 1
From Japanese ã†ã‚‹ã— (urushi, “lacquer") +"Ž -ol