cathode
/ˈkæθ.oʊd/ nom C1En français : cathode
- 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).
- The electrode at which chemical reduction of cations takes place, usually resulting in the deposition of metal onto the electrode.
- The electrode from which electrons are emitted into a vacuum tube or gas-filled tube.
- That electrode of a semiconductor device which is connected to the n-type material of a p-n junction.
Pluriel cathodes
Apprenez cathode dans de vrais textes
Avec un compte gratuit, survolez n’importe quel mot de la bibliothèque pour voir son sens, écoutez-le lu à voix haute, enregistrez des mots pour des révisions calées sur votre mémoire, et voyez quelle part de chaque livre vous connaissez déjà.