Empyrical definitions

Empyrical

• (a.) Containing the combustible principle of coal.
Found on http://thinkexist.com/dictionary/meaning/empyrical/

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Empyrical

Em·pyr'ic·al adjective [ Greek ... in fire. See Empyreal .] Containing the combustible principle of coal. Kirwan.
Found on http://www.encyclo.co.uk/webster/E/32

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