1. 
   Epignathous
   E·pig'na·thous adjective [ Epi- + Greek gna`qos the jaw.] (Zoology) Hook- billed; having the upper mandible longer than the lower.
   Found op http://www.encyclo.co.uk/webster/E/55
   
   
2. 
   epignathous
   <zoology> Hook-billed; having the upper mandible longer than the lower. ... Origin: Epi- + Gr. The jaw. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?epignathous
   
   
3. 
   Epignathous
   • (a.) Hook-billed; having the upper mandible longer than the lower.
   Found op http://thinkexist.com/dictionary/meaning/epignathous/
   
   

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