scapho

n. [ Gr. ska`fh a boat + kefalh` head. ] (Anat.) A deformed condition of the skull, in which the vault is narrow, elongated, and more or less boat-shaped. [ 1913 Webster ]

n. [ Gr. ska`fh boat + E. cerite. ] (Zool.) A flattened plate or scale attached to the second joint of the antennae of many Crustacea. [ 1913 Webster ]

n. [ Gr. ska`fh boat + gna`qos jaw. ] (Zool.) A thin leafike appendage (the exopodite) of the second maxilla of decapod crustaceans. It serves as a pumping organ to draw the water through the gill cavity. [ 1913 Webster ]

a. [ Gr. ska`fh a boat + -oid: cf. F. scaphoïde. ] (Anat.) Resembling a boat in form; boat-shaped. -- n. The scaphoid bone. [ 1913 Webster ]

Scaphoid bone (a) One of the carpal bones, which articulates with the radius; the radiale. (b) One of the tarsal bones; the navicular bone. See under Navicular. [ 1913 Webster ]

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 ]