/ Dictionary / Index R resnatron: Meaning and Definition of Find definitions for: res•na•tron Pronunciation: (rez'nu-tron"), [key] — n. Electronics. a tetrode with the grid connected to form a drift space for the electrons, formerly used to generate high power at very high frequency. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reskin Resnik Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language