1. 
   epimerization
   Interconversion of epimers by reversal of the configuration at one of the 'stereogenic' centres.
   Found op http://www.chem.qmul.ac.uk/iupac/gtpoc/E.html
   
   
2. 
   epimerization
   (ә-pim″әr-ĭ-za´shәn) the changing of one epimeric form of a compound into another, as by enzymatic action.
   Found op http://www.encyclo.co.uk/local/21001
   
   

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