Source : Webster's Revised Unabridged Dictionary (1913)

Electrode \E*lec"trode\, n. [Electro- + Gr. ? way, path: cf. F.
   ['e]lectrode.] (Elec.)
   The path by which electricity is conveyed into or from a
   solution or other conducting medium; esp., the ends of the
   wires or conductors, leading from source of electricity, and
   terminating in the medium traversed by the current.

Source : WordNet®

electrode
     n : a conductor used to make electrical contact with some part
         of a circuit