gastroduodenal
adjective
gas·tro·du·o·de·nal ˌga-strō-ˌd(y)ü-ə-ˈdē-nᵊl 
-d(y)u̇-ˈä-də-nəl
-d(y)u̇-ˈä-də-nəl : of, relating to, or involving the stomach and the duodenum
Word History
First Known Use
1854, in the meaning defined above
Medical Definition
gastroduodenal
adjective
gas·tro·du·o·de·nal -ˌd(y)ü-ə-ˈdēn-ᵊl -d(y)u̇-ˈäd-ᵊn-əl
-d(y)u̇-ˈäd-ᵊn-əl : of, relating to, or involving both the stomach and the duodenum