/ Dictionary / Index G grid current: Meaning and Definition of Find definitions for: grid' cur"rent Pronunciation: [key] — Electronics. Electronics. the current that moves within the vacuum tube from the grid to the cathode. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grid circuit gridder Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language