scapholunar bone

from The Collaborative International Dictionary of English v.0.48

Scapholunar \Scaph`o*lu"nar\, a. [Scaphoid + lunar.] (Anat.)
   Of or pertaining to the scaphoid and lunar bones of the
   carpus. -- n. The scapholunar bone.
   [1913 Webster]

   {Scapholunar bone}, a bone formed by the coalescence of the
      scaphoid and lunar in the carpus of carnivora.
      [1913 Webster]