/ Dictionary / Index C control electrode: Meaning and Definition of Find definitions for: control' elec"trode Pronunciation: [key] — Electronics. Electronics. an electrode to which a varying signal is applied to vary the output of a transistor or vacuum tube. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. control chart control experiment Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language