Ulnaria

from The Collaborative International Dictionary of English v.0.48

Ulnare \Ul*na"re\, n.; pl. {Ulnaria}. [NL. See {Ulna}.] (Anat.)
   One of the bones or cartilages of the carpus, which
   articulates with the ulna and corresponds to the cuneiform in
   man.
   [1913 Webster]