1. 
   Lyencephalous
   Ly`en·ceph'a·lous adjective (Zoology) Pertaining to, or characteristic of, the Lyencephala.
   Found op http://www.encyclo.co.uk/webster/L/72
   
   
2. 
   lyencephalous
   <zoology> Pertaining to, or characteristic of, the Lyencephala. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?lyencephalous
   
   
3. 
   Lyencephalous
   • (a.) Pertaining to, or characteristic of, the Lyencephala.
   Found op http://thinkexist.com/dictionary/meaning/lyencephalous/
   
   

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