Dictionary
e•lec•trode
Pronunciation: (i-lek'trōd), [key]—
n. Elect.
a conductor, not necessarily metallic, through which a current enters or leaves a nonmetallic medium, as an electrolytic cell, arc generator, vacuum tube, or gaseous discharge tube.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.