/ Dictionary / Index E electron gun: Meaning and Definition of Find definitions for: elec'tron gun" Pronunciation: [key] — Electronics, Television. Electronics,Television. a device consisting of the cathode ray tube, which emits electrons, and a surrounding electrostatic or electromagnetic apparatus, which controls, focuses, and accelerates the stream of electrons Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. electroneutral electronic Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language