Electrode

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Electrode

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1. A terminal at which electricity passes from one medium into another. The positive electrode is called anode; the negative electrode is called cathode. </dd>
2. In a semiconductor device, an element that performs one or more of the functions of emitting or collecting electrons or holes, or of controlling their movements by an electric field. </dd>
3. In electron tubes, a conducting element that performs one or more of the functions of emitting, collecting or controlling, by an electromagnetic field, the movements of electrons or ions. See anode (electron tubes) and cathode. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use