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Webster 1913 Edition
Cathode
Cath′ode
,Noun.
[Gr. [GREEK] descent; [GREEK] down + [GREEK] 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.