swingletree(redirected from swingletrees)
Also found in: Thesaurus.
n. Chiefly British
[From English swingle, wooden instrument used for beating flax, from Middle English, from Middle Dutch swinghel.]
(Horse Training, Riding & Manège) a crossbar in a horse's harness to which the ends of the traces are attached. Also called: whippletree or whiffletree (esp US)
[C15: from swingle + tree (in the sense: a post or bar)]
whif•fle•tree(ˈʰwɪf əlˌtri, ˈwɪf-)
Northern U.S. a crossbar, pivoted at the middle, to which the traces of a harness are fastened for pulling a vehicle or a plow. Also called whippletree , singletree.
[1820–30; variant of whippletree]