Definition of "whippletree" [whip•ple•tree]

• Upper Northern U.S. See whiffletree. See Regional Note at whiffletree. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The colter needed sharpening and there was a crack in the whippletree."
• "After three quarters of an hour or so I was suddenly startled alert by hearing the squeak-squeak of a whippletree out on the lawn."