1. 
   Rumicin
   Ru'mi·cin noun (Chemistry) A yellow crystalline substance found in the root of yellow dock ( Rumex crispus ) and identical with chrysophanic acid .
   Found op http://www.encyclo.co.uk/webster/R/104
   
   
2. 
   Rumicin
   • (n.) A yellow crystalline substance found in the root of yellow dock (Rumex crispus) and identical with chrysophanic acid.
   Found op http://thinkexist.com/dictionary/meaning/rumicin/
   
   

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