Get the FREE one-click dictionary software for Windows
or the iPhone/iPad and Android apps
Adjective: extensile  ik'sten-sul or ik'sten,sI(-u)l [N. Amer], ik'sten,sI(-u)l [Brit]
  1. Capable of being protruded, stretched or opened out
    "an extensile tongue";
    - extensible

See also: protractible, protractile, protrusible, protrusile