n., pl., -nas, or -nae (-nē).
- The bone extending from the elbow to the wrist on the side opposite to the thumb in humans.
- A corresponding bone in the forelimb of other vertebrates.
[Latin, elbow, forearm.]
ulnar ul'nar adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
