Medical Dictionary
3 ENTRIES FOUND:

cathode

noun cath·ode \ˈkath-ˌōd\

Definition of CATHODE

1
:  the electrode of an electrochemical cell at which reduction occurs: as a :  the negative terminal of an electrolytic cell b :  the positive terminal of a storage battery that is delivering current
2
:  the electron-emitting electrode of an electron tube—compare anode
March 30, 2015
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