knuckle bone

knucklebone

[nuhk-uhl-bohn]
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:
1400–50; late Middle English; see knuckle, bone

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Collins
World English Dictionary
knucklebone (ˈnʌkəlˌbəʊn)
 
n
any bone forming part of a knuckle or knuckle joint

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Medical Dictionary

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.
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