/ Dictionary / Index A auto racing: Meaning and Definition of Find definitions for: au'to rac"ing Pronunciation: [key] the sport of racing automobiles in which drivers compete against each other on a course designed for racing or on closed public roads. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. autopsy autoradiograph Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language