Electr. [ad. Gr. ἄνοδος way up, f. ἀνά up + ὁδός way.] a. strictly, as applied by Faraday: The path by which an electric current leaves the positive pole, and enters the electrolyte, on its way to the negative pole. b. loosely used for: The positive pole. In both senses opposed to cathode, which is applied to the path of exit from the electrolyte, and to the negative pole.
a. 1849. Russell & Woolrich, in Circ. Sc., I. 220/1. A plate of Cadmium as an anode.
1875. Ure, Dict. Arts, II. 221. The nickel anodes are connected to the … carbon plates of the battery; the articles to be coated with the zincs.
b. 1841. W. Grove, Contrib. Sc., 241. The anode of a voltaic combination.
1870. R. Ferguson, Electr., 161. The poles … are called electrodes, the + pole being called the anode.
