/ Dictionary / Index S slot car: Meaning and Definition of Find definitions for: slot' car" Pronunciation: [key] a miniature, electrically-operated toy racing car that runs on a slotted track and is controlled by an operator with a hand-held rheostat. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. slotback sloth Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language