1. 
   Pterylosis
   Pter`y·lo'sis noun [ New Latin , from New Latin & English pteryla .] (Zoology) The arrangement of feathers in definite areas.
   Found op http://www.encyclo.co.uk/webster/P/189
   
   
2. 
   pterylosis
   <zoology> The arrangement of feathers in definite areas. ... Origin: NL, fr. NL. & E. Pteryla. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?pterylosis
   
   
3. 
   Pterylosis
   • (n.) The arrangement of feathers in definite areas.
   Found op http://thinkexist.com/dictionary/meaning/pterylosis/
   
   

Tip: double click on a word to show its meaning.