/ Dictionary / Index W wheelbase: Meaning and Definition of Find definitions for: wheel•base Pronunciation: (hwēl'bās", wēl'-), [key] — n. Auto. the distance from the center of the front-wheel spindle to the center of the rear-wheel axle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: wheelbase (Thesaurus) wheelbarrow race wheel bug Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language