noun Etymology: International Scientific Vocabulary, from Japanese urushi lacquer + International Scientific Vocabulary 1-ol Date: 1908 a mixture of catechol derivatives with saturated or unsaturated side chains of 15 or 17 carbon atoms that is an oily toxic irritant principle present in poison ivy and some related plants (genus Rhus) and in lacquers derived from such plants

New Collegiate Dictionary. 2001.

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  • Urushiol — ist ein starkes Kontaktallergen in mehreren Varianten (3 Alkylbrenzcatechin und 3 Alkenylbrenzcatechin), die insbesondere im Giftsumach vorkommen, einer nordamerikanischen Pflanze. Auch in nicht ausgehärtetem Urushi ist Urushiol enthalten, woraus …   Deutsch Wikipedia

  • urushiol — Resina tóxica de la savia de ciertas plantas del género Rhus, como el roble venenoso y el zumaque venenoso, que produce dermatitis de contacto tóxica en muchas personas. Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones… …   Diccionario médico

  • urushiol — [o͞o′ro͞o shē ôl΄, o͞o ro͞o′shē ôl΄; o͞o ro͞o shēōl΄] n. [Jpn urushi, lac tree, lacquer + OL1: coined (1907) by Toshiyuki Mashima, who isolated it] a poisonous, irritant liquid, C21H32O2, present in poison ivy, poison sumac, etc …   English World dictionary

  • Urushiol — For information on urushiol poisoning, see Urushiol induced contact dermatitis. Urushiol (pronEng|ʊˈruːʃiɒl) is an oil found in plants of the Family Anacardiaceae, especially Toxicodendron spp. ( e.g. poison oak, poison ivy, and poison sumac). It …   Wikipedia

  • Urushiol — L’urushiol est une toxine organique que l on trouve dans les plantes de la famille des Anacardiaceae, spécialement dans le genre Toxicodendron (par exemple le sumac grimpant en Amérique du Nord). Il provoque des allergies de la peau ou dermatites …   Wikipédia en Français

  • Urushiol — El urushiol es un aceite que se encuentra en ciertas plantas de la familia de las Anacardiaceae, especialmente el Toxicodendron spp.. Se encuentra también en la piel de los anacardos (Anacardium occidentale), en algunos casos provoca una especie… …   Wikipedia Español

  • urushiol — noun ʊˈɹuʃiˌɔl 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. All three produce an oil, called urushiol, that is a potent allergen.… …   Wiktionary

  • urushiol — A mixture of nonvolatile hydrocarbons, derivatives of catechol with unsaturated C15 or C17 side chains, constituting the active allergen of the irritant oil of poison ivy, Toxicodendron radicans, poison oak, T. diversilobum, and the Asiatic… …   Medical dictionary

  • urushiol — 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}.] 1. Any agent which, when introduced into the animal organism, is… …   The Collaborative International Dictionary of English

  • urushiol — urušiolis statusas T sritis chemija formulė (HO)₂C₆H₃(CH₂)₇CH=CH(CH₂)₆H atitikmenys: angl. urushiol rus. урушиол ryšiai: sinonimas – 3 (8 pentadecenil) 1,2 benzendiolis …   Chemijos terminų aiškinamasis žodynas

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