/ Dictionary / Index F fuel cell: Meaning and Definition of Find definitions for: fu'el cell" Pronunciation: [key] a device that produces a continuous electric current directly from the oxidation of a fuel, as that of hydrogen by oxygen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fuel fuel-efficient Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language