1. 
   Empyrical
   Em·pyr'ic·al adjective [ Greek ... in fire. See Empyreal .] Containing the combustible principle of coal. Kirwan.
   Found op http://www.encyclo.co.uk/webster/E/32
   
   
2. 
   Empyrical
   • (a.) Containing the combustible principle of coal.
   Found op http://thinkexist.com/dictionary/meaning/empyrical/
   
   
3. 
   empyrical
   1) Containing the combustible principle of coal
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/empyrical/1
   
   

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