'Buckboard' definitions:

Definition of 'buckboard'

(from WordNet)
noun
An open horse-drawn carriage with four wheels; has a seat attached to a flexible board between the two axles

Definition of 'Buckboard'

From: GCIDE
  • Buckboard \Buck"board`\, n. 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. [1913 Webster]