• (a.) Of or pertaining to the scaphoid and lunar bones of the carpus. • (n.) The scapholunar bone.
Scaph`o·lu'nar adjective [ Scapho id + lunar .] (Anat.) Of or pertaining to the scaphoid and lunar bones of the carpus. -- noun The scapholunar bone. Scapholunar bone , 
scapholunar 1. Of or pertaining to the scaphoid and lunar bones of the carpus. 2. In anatomy, the middle bone of the proximal (nearest) series of the carpus (wrist).