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cathode

noun

cath·​ode ˈka-ˌthōd How to pronounce cathode (audio)
1
: the electrode of an electrochemical cell at which reduction occurs:
a
: the negative terminal of an electrolytic cell
b
: the positive terminal of a galvanic cell
2
: the electron-emitting electrode of an electron tube
broadly : the negative electrode of a diode compare anode
cathodal adjective
cathodally adverb
cathodic adjective
cathodically adverb

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