'Electrode' definitions:

Definition of 'electrode'

noun

A conductor used to make electrical contact with some part of a circuit

From: GCIDE

Electrode \E*lec"trode\ ([-e]*l[e^]k"tr[=o]d), n. [Electro- + Gr. "odo`s way, path: cf. F. ['e]lectrode.] (Elec.) a conducting object by which electricity is conveyed into or from a solution or other non-metallic conducting medium; esp., the ends of the wires or conductors, leading from source of electricity, and terminating in the medium traversed by the current.
Note: Electrodes may be specially designed or made of a special material for particular purposes, as for example silver electrodes used in electroplating. [1913 Webster +PJC] Electro-dynamic