1. (electronics) a negatively charged electrode that is the source of electrons entering an electrical device
   "The kathode provided electrons for the circuit.";
   - cathode
    
2. (electrochemical cells) the positively charged terminal of a voltaic cell or storage battery that supplies current
   "He connected the wire to the kathode of the battery";
   - cathode

Derived forms: kathodes

Type of: depot, electrode, terminal, terminus

Part of: accumulator, electrolytic cell, electron tube, galvanic cell, primary cell, storage battery, thermionic tube, thermionic vacuum tube, thermionic valve, tube, vacuum tube, voltaic cell

Encyclopedia: Kathode