/ Dictionary / Index R racer: Meaning and Definition of Find definitions for: rac•er Pronunciation: (r?'sur), [key] ? n. a person, animal, or thing that races or takes part in a race, as a racehorse, bicycle, yacht, etc. anything having great speed. See a turntable on which a heavy gun is turned. any of several slender, active snakes of the genera Coluber and Masticophis. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. See also: racer (Thesaurus) race plate race riot Related Content Daily Word Quiz: abdicate Analogy of the Day: Today?s Analogy Spelling Bee: Today?s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language