carpometacarpus

< /ˌkɑr pəˌmɛt əˈkɑr paɪ, -ˈmɛt əˌkɑr-/. Ornithology.

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

noun

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