Dictionary Meaning and Definition on 'Electrode'
n : a conductor used to make electrical contact with some part
of a circuit
- Electrode \E*lec"trode\, n. [Electro- + Gr. ? way, path: cf. F.
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.
Wikipedia Meaning and Definition on 'Electrode'
An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte or a vacuum). The word was coined by the scientist Michael Faraday from the Greek words elektron (meaning amber, from which the word electricity is derived) and hodos, a way.
An electrode in an electrochemical cell is referred to as either an anode or a cathode (words that were also coined by Faraday). The anode is now defined as the electrode at which electrons leave the cell and oxidation occurs, and the cathode as the electrode at which electrons enter the cell and reduction occurs. Each electrode may become either the anode or the cathode depending on the direction of current through the cell. A bipolar electrode is an electrode that functions as the anode of one cell and the cathode of another cell.[See more about Electrode at Dictionary 3.0 Encyclopedia]