1. 
   Sack-winged
   Sack'-winged` adjective (Zoology) Having a peculiar pouch developed near the front edge of the wing; -- said of certain bats of the genus Saccopteryx .
   Found op http://www.encyclo.co.uk/webster/S/3
   
   
2. 
   sack-winged
   <zoology> Having a peculiar pouch developed near the front edge of the wing; said of certain bats of the genus Saccopteryx. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?sack-winged
   
   
3. 
   Sack-winged
   • (a.) Having a peculiar pouch developed near the front edge of the wing; -- said of certain bats of the genus Saccopteryx.
   Found op http://thinkexist.com/dictionary/meaning/sack-winged/
   
   

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