Source : Webster's Revised Unabridged Dictionary (1913)

Wheelbarrow \Wheel"bar`row\, n.
   A light vehicle for conveying small loads. It has two handles
   and one wheel, and is rolled by a single person.

Source : WordNet®

wheelbarrow
     n : a cart for carrying small loads; has handles and one or more
         wheels [syn: {barrow}, {garden cart}, {lawn cart}]