carpometacarpus

[ kahr-puh-met-uh-kahr-puh s, -met-uh-kahr- ]
/ ˌkɑr pəˌmɛt əˈkɑr pəs, -ˈmɛt əˌkɑr- /

noun, plural car·po·met·a·car·pi [kahr-puh-met-uh-kahr-pahy, -met-uh-kahr-] /ˌkɑr pəˌmɛt əˈkɑr paɪ, -ˈmɛt əˌkɑr-/. Ornithology.

the bone of a bird's wing formed by fusion of the carpal and metacarpal bones.
the part of the wing supported by this bone.

Origin of carpometacarpus

British Dictionary definitions for carpometacarpus

carpometacarpus
/ (ˌkɑːpəʊˌmɛtəˈkɑːpəs) /

noun

a bone in the wing of a bird that consists of the metacarpal bones and some of the carpal bones fused together