Look up: urushiol

1. 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 laquer tree, T. Verniciferum. ... Origin: Jap. Urushi, lac, + L. Oleum, oil ... (05 Mar 2000) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
2. urushiol
   (u-roo´she-ol) an oleoresin that is the toxic irritant principle of poison ivy and related plants, and is also found in a few less common plant species.
   Found on http://www.encyclo.co.uk/local/21001
   
   
3. urushiol
   (from the article `immune system disorder`) ...examples of a plant that can provoke a contact hypersensitivity reaction is poison ivy (Toxicodendron radicans), found throughout North America. ... The plant is poisonous to touch, producing in many persons a severe inflammation of the skin, or dermatitis. The toxic principle, urushiol, is...
   Found on http://www.britannica.com/eb/a-z/u/18
   
   
4. urushiol
   Type: Term Pronunciation: ū-rū′shē-ōl Definitions: 1. 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 laq...
   Found on http://www.medilexicon.com/medicaldictio
   
   
5. urushiol
   resin in poison ivy plants that causes an allergic skin reaction.
   Found on http://www.cosmeticskin.com/skin-Dermato
   
   
6. urushiol
   resin in poison ivy plants that causes an allergic skin reaction.
   Found on http://www.yourskinandsun.com/dermg.html
   
   
7. urushiol
   resin in poison ivy plants that causes a skin reaction.
   Found on http://www.umm.edu/dermatology-info/glos