单词 | ulna |
释义 | ul·na ![]() n. pl. ul·nas or ul·nae (-nē) 1. The bone extending from the elbow to the wrist on the side opposite to the thumb in humans. 2. A corresponding bone in the forelimb of other vertebrates. [Latin, elbow, forearm; see el- in the Appendix of Indo-European roots.] ulnar adj. |
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