1. 
   Heliochromy
   He'li·o·chro`my noun The art of producing photographs in color.
   Found op http://www.encyclo.co.uk/webster/H/28
   
   
2. 
   heliochromy
   The art of producing photographs in colour. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?heliochromy
   
   
3. 
   Heliochromy
   • (n.) The art of producing photographs in color.
   Found op http://thinkexist.com/dictionary/meaning/heliochromy/
   
   

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