Webster’s Revised Unabridged Dictionary · 1913
Extensible
Ex·ten′si·ble (ĕks·tĕn′sĭ·b'l), a. [Cf. F. extensible. See Extend.] Capable of being extended, whether in length or breadth; susceptible of enlargement; extensible; extendible; — the opposite of contractible or compressible. "An extensible membrane" Holder.