(in quadrupeds) a bone homologous with a wrist, ankle, or finger bone of humans, or its knobbed end.
Origin of knucklebone
late Middle English
word dating back to 1400–50;
see origin at knuckle
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for knucklebones
Historical Examples of knucklebones
No kneeling figures, no Nellie Underwood, no Cyril, no knucklebones.
The draught-men employed were knucklebones of sheep, some blackened.
Turning to his men, with his hand he brushed the knucklebones off the board.
They all seemed very merry over a game, much like "knucklebones," which they were playing with shells.
We talk of dignity and propriety, and we are like so many children playing with knucklebones in a giant's scullery.
British Dictionary definitions for knucklebones
(functioning as singular) a less common name for jacks
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
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.