01 n. The part of a voltaic battery by which the electric current leaves substances through which it passes, or the surface at which the electric…
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1.
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.(Physics)
Phrases & compounds
Cathode ray —
a kind of ray generated at the cathode in a vacuum tube, by the electrical discharge<-- X-ray -->.