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cathode

play
noun cath·ode \ˈka-ˌthōd\

Simple Definition of cathode

  • : the part of an electrical device (such as a battery) where electrons enter

Full Definition of cathode

  1. 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. 2 :  the electron-emitting electrode of an electron tube; broadly :  the negative electrode of a diode — compare anode

cath·od·al play \ˈka-ˌthō-dəl\ adjective
cath·od·al·ly adverb
ca·thod·ic play \ka-ˈthä-dik, -ˈthō-\ adjective
ca·thod·i·cal·ly play \-di-k(ə-)lē\ adverb

Origin of cathode

Greek kathodos way down, from kata- + hodos way


First Known Use: 1834


Medical Dictionary

cathode

play
noun cath·ode \ˈkath-ˌōd\

Medical Definition of cathode

  1. 1:  the electrode of an electrochemical cell at which reduction occurs: asa:  the negative terminal of an electrolytic cellb:  the positive terminal of a storage battery that is delivering current

  2. 2:  the electron-emitting electrode of an electron tube—compare anode




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