mucocutaneous
/ˌmjuːkəʊkjuːˈteɪnɪəs/adjective
1 Anatomy and Medicine. Designating the junction between a mucous membrane and the skin, as at the mouth, anus, etc.
2 Medicine. Of, relating to, or affecting mucous membranes and skin.
Origin
Late 19th century; earliest use found in T. Clifford Allbutt (1836–1925), physician. From muco- + cutaneous.