Electrodes

—1. In electrolysis, the terminal plates in the bath; the plate by which ~ the current enters the solution is called the, anode and that by which the current leaves is called the cathode. 2. In a voltaic cell, the plates immersed in the exciting fluid or electrolyte. 3. In arc lighting, the carbons which form the terminals for the arc. 4. In electro-therapeutics, terminals for the curative applications of electricity.