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Webster 1913 Edition
Chrysophanic
Chrysˊo-phan′ic
,Adj.
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.