Definitions for buckboardˈbʌkˌbɔrd, -ˌboʊrd
Random House Webster's College Dictionary
a light, four-wheeled carriage in which a long elastic board or lattice frame is used in place of body and springs.
Origin of buckboard:
an open horse-drawn carriage with four wheels; has a seat attached to a flexible board between the two axles
A simple, distinctively American four-wheeled horse-pulled wagon designed for personal transport as well as for transporting animal fodder and domestic goods, often with a spring-mounted seat for the driver.
Origin: buck + board
a four-wheeled vehicle, having a long elastic board or frame resting on the bolsters or axletrees, and a seat or seats placed transversely upon it; -- called also buck wagon