[f. as prec. + -ode (as in ANODE), ad. Gr. ὁδός way.] One of the poles of a galvanic battery. See ANODE and CATHODE.
1834. Faraday, Res. Electr. (1839), § 662. In place of the term pole I propose Electrode, and I mean thereby that surface which bounds the extent of the decomposing matter in the direction of the electric current.
1850. Daubeny, Atom. The., vii. (ed. 2), 207. The same wire, if made the positive electrode of the galvanic battery, is not acted upon by the acid.
1878. Huxley, Physiogr., 102. This plate forms one of the electrodes [note, otherwise called the pole] or entrances by which the electricity reaches the liquid.