cathode

IPA: kˈæθoʊd

noun

  • (electricity) An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows outwards (and thus, electrons flow inwards). It can have either a negative or a positive voltage with respect to anode of the same polarized device (depending on whether the device is a load or a source, respectively).
  • (chemistry, by extension) The electrode at which chemical reduction of cations takes place, usually resulting in the deposition of metal onto the electrode.
  • (electronics) The electrode from which electrons are emitted into a vacuum tube or gas-filled tube.
  • (electronics) That electrode of a semiconductor device which is connected to the n-type material of a p-n junction.
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Examples of "cathode" in Sentences

  • The cathode is the negative electrode.
  • Copper is the cathode and zinc the anode.
  • An envelope encloses the dynodes and the cathode.
  • The cathodes of the cell alternate with the anodes.
  • The anode is disposed in the cell above the cathode.
  • In this case copper is the cathode and zinc the anode.
  • The cathode and the focus electrode are interconnected.
  • The nozzle is the cathode, and the electrode is the anode.
  • The nature of the new cathode is proprietary at this time.
  • The anode is positioned to face the opening of the cathode.

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synonyms for cathodedescribing words for cathode
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