Meaning of doubletree

dou•ble•tree

Pronunciation: (dub'ul-trē"), [key]
— n.
  1. a pivoted bar with a whiffletree attached to each end, used in harnessing two horses abreast. See illus. under
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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