ulna
Anatomy. the bone of the forearm on the side opposite to the thumb.: Compare radius (def. 7).
a corresponding bone in the forelimb of other vertebrates.
Origin of ulna
1Other words from ulna
- ulnar, adjective
- post·ul·nar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use ulna in a sentence
The bones on which this species is founded are a pair of ulnae, one radius, four metatarsi, and one coracoid.
Extinct Birds | Walter Rothschild
British Dictionary definitions for ulna
/ (ˈʌlnə) /
the inner and longer of the two bones of the human forearm
the corresponding bone in other vertebrates
Origin of ulna
1Derived forms of ulna
- ulnar, adjective
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
Scientific definitions for ulna
[ ŭl′nə ]
The longer of the two bones of the forearm or lower portion of the foreleg. See more at skeleton.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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