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Cathode
01
a negatively charged electrode within an electrical device, from which electrons flow out into the external circuit
Examples
The cathode of the battery supplies electrons to the external circuit when the device is in use.
In a vacuum tube, the cathode emits electrons when heated, enabling the device to function as an amplifier or oscillator.
02
the positively charged terminal of a voltaic cell or storage battery that supplies current
Lexical Tree
cathodic
cathode
