/ Dictionary / Index A all-terrain bike.: Meaning and Definition of Find definitions for: all'-ter•rain' bike" Pronunciation: (ôl'tu-rān'). [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. All's Well That Ends Well* all-terrain vehicle Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language