The definition of a singletree is a bar between the pulling animal and the wagon or plow that balances the weight being pulled.noun
An example of a singletree is a metal crossbar between a horse and a buggy.YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
Origin: altered (as if < single) < swingletree < ME swingle, rod, whip + tre, tree
Used by arrangement with John Wiley & Sons, Inc.
Origin: Alteration (influenced by doubletree) of swingletree.