Breadcrumb Home > Dictionary > Index P pentode: Meaning and Definition of Find definitions for: pen•tode Pronunciation: (pen'tōd), [key] — n. Electronics. a vacuum tube having five electrodes, usually a plate, three grids, and a cathode, within the same envelope. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pentode (Thesaurus) pentobarbital pentolite TrendingHere are the facts and trivia that people are buzzing about. The Book of Philippians: Summary Current Events This Week: May 2023 Preamble of the United Nations Charter Queen Victoria Books of the Bible: New Testament Books in Order The 88 Recognized Constellations ✖ Related Content Daily Word Quiz: miasma Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language