Hypertext Webster Gateway: "ulna"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Ulna \Ul"na\, n. [L., the elbow. See {Ell}.]
1. (Anat.) The postaxial bone of the forearm, or branchium,
corresponding to the fibula of the hind limb. See
{Radius}.
2. (O. Eng. Law) An ell; also, a yard. --Burrill.
From WordNet (r) 1.7 (wn)
ulna
n : the inner and longer of the two bones of the human forearm
[syn: {elbow bone}]
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