follow Dictionary.com

It’s about time. We are now on Instagram!

knucklebone

[nuhk-uh l-bohn] /ˈnʌk əlˌboʊn/
noun
1.
(in humans) any of the bones forming a knuckle of a finger.
2.
(in quadrupeds) a bone homologous with a wrist, ankle, or finger bone of humans, or its knobbed end.
Origin
late Middle English
1400-1450
1400-50; late Middle English; see knuckle, bone
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for knuckle bone

knucklebone

/ˈnʌkəlˌbəʊn/
noun
1.
any bone forming part of a knuckle or knuckle joint
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
knuckle bone in Medicine

knucklebone knuck·le·bone (nŭk'əl-bōn')
n.
A knobbed bone, as of a knuckle or joint.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for knucklebone

Few English speakers likely know this word

Word Value for knuckle

17
21
Scrabble Words With Friends