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chrysophanic


chrysophanic


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Parietic  \Pa`ri*et"ic\,  a.  (Chem.) 
  Pertaining  to  or  designating,  an  acid  found  in  the  lichen 
  {Parmelia  parietina},  and  called  also  {chrysophanic}  acid. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Chrysophanic  \Chrys`o*phan"ic\,  a. 
  Pertaining  to  or  derived  from  or  resembling,  chrysophane. 
 
  {Chrysophanic  acid}  (Chem.),  a  yellow  crystalline  substance 
  extracted  from  rhubarb,  yellow  dock,  sienna,  chrysarobin, 
  etc.,  and  shown  to  be  a  derivative  of  an  anthracene.  It  is 
  used  in  the  treatment  of  skin  diseases;  --  called  also 
  {rhein},  {rheic  acid},  {rhubarbarin},  etc