Cath"ode (?), n. [Gr.
&?; descent; &?; down + &?;
way.]
(Physics)
The part of a voltaic
battery by which the electric current leaves substances through which it passes, or the surface at which the electric current passes out of the electrolyte; the negative pole; -- opposed to anode.
Faraday.
Cathode ray (Phys.), a kind of ray
generated at the cathode in a
vacuum tube, by the electrical discharge.
Hear it pronounced