Source : Webster's Revised Unabridged Dictionary (1913)

Epiperipheral \Ep`i*pe*riph"er*al\, a. [Pref. epi- +
   peripheral.] (Physiol.)
   Connected with, or having its origin upon, the external
   surface of the body; -- especially applied to the feelings
   which originate at the extremities of nerves distributed on
   the outer surface, as the sensation produced by touching an
   object with the finger; -- opposed to {entoperipheral}. --H.
   Spenser.