carpal

Any of the eight bones of the wrist (carpus).

Of or pertaining to the carpus.

Of or pertaining to the obvious bend in a bird's wing.

The human wrist contains eight carpal bones and the hand has five metacarpals , but in birds just a couple of tiny carpal bones remain besides the carpometacarpus; these are the radiale and the ulnare, involved in the folding of the wrist joint.