ex·ten·si·ble /ɪkˈstɛn(t)səbəl/
  (a.)可展開的,可延長的,可擴張的
  ex·ten·si·ble /ɪkˈstɛn(t)səbəl/ 形容詞
  extensible
  可延伸 可擴充
  Ex·ten·si·ble a.  Capable of being extended, whether in length or breadth; susceptible of enlargement; extensible; extendible; -- the opposite of contractible or compressible. “An extensible membrane”
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  extensible
       adj : capable of being protruded or stretched or opened out; "an
             extensile tongue"; "an extensible measuring rule" [syn:
              extensile] [ant: nonextensile]