Ŭl'na, n.
[Lat. ulna, Gr. ὠλένη, the elbow.]
Sense 1. (Anat.) The larger of the two bones of the fore-arm, which reaches from the posterior point of the elbow to the side of the wrist on which the little finger is placed.
Sense 2. (O. Eng. Law.) An ell. Burrill.