Definition of doubletree in English:


Pronunciation /ˈdəbəlˌtrē/ /ˈdəbəlˌtri/


North American
  • A crossbar in front of a wagon with a swingletree at each end, enabling two horses to be harnessed.

    ‘The doubletree on the wagon could be adjusted to allow one horse to pull more.’
    • ‘The wheel horses pull on the doubletree against this hammerpin running through the wagon-tonque.’


Mid 19th century from double, on the pattern of singletree.