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cathode
A cathoe is an electrode through which (positive)electric current flows out of a polarized electrical device. Mnemonic: CCD (Cathode Current Departs).
Trivia about cathode
In a battery, electrical current runs between the anode & this other electrode
(Jimmy of the Clue Crew reports from the Stanford Linear Accelerator at Menlo Park, CA.) At one end of the accelerator, particles are fired out of a gun that uses this type of negative electrode, just like the ray on your TV set