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lecanora

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Orcin \Or"cin\, n. [Etymology uncertain: cf. F. orcine.] (Chem.)
   A colorless crystalline substance, {C6H3.CH3.(OH)2}, which is
   obtained from certain lichens ({Roccella}, {Lecanora}, etc.),
   also from extract of aloes, and artificially from certain
   derivatives of toluene. It changes readily into orcein.

資料來源 : WordNet®

lecanora
     n : any lichen of the genus Lecanora; some used in dyeing; some
         used for food
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