DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   extensile
       adj 1: capable of being protruded or stretched or opened out;
              "an extensile tongue"; "an extensible measuring rule"
              [syn: extensile, extensible] [ant: inextensible,
              nonextensile, nonprotractile]