1. Plural of doubletree; a crossbar on a vehicle (such as a wagon or carriage) to which the traces of a harness are fastened, allowing a team of horses to pull together.
Usage: Also called a whiffletree or evener in some regions.; Primarily used in historical or agricultural contexts.

Examples

• The farmer attached the horses' traces to the doubletrees before heading to the field.
• Worn doubletrees were replaced on the old wagon to ensure even pulling power.
• The blacksmith repaired the doubletrees that had cracked during the heavy plowing season.
• Each horse was connected to the doubletrees through its harness traces.
• The doubletrees allowed the team of oxen to distribute the load evenly across the cart.