Ulna

 : 
Noun
 : 
ul=na

WORDNET DICTIONARY

Noun Ulna has 1 sense

CIDE DICTIONARY

Ulnan. [L., the elbow. See Ell.].
  •  The postaxial bone of the forearm, or brachium, corresponding to the fibula of the hind limb. See Radius.  [1913 Webster]
  •  An ell; also, a yard.  Burrill.  [1913 Webster]

OXFORD DICTIONARY

Ulna, n. (pl. ulnae)
1 the thinner and longer bone in the forearm, on the side opposite to the thumb (cf. RADIUS 3).
2 Zool. a corresponding bone in an animal's foreleg or a bird's wing.

Derivative
ulnar adj.
Etymology
L, rel. to Gk olene and ELL

For further exploring for "Ulna" in Webster Dictionary Online


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