megaduodenum
noun
mega·du·o·de·num
| \ ˌmeg-ə-ˌd(y)ü-ə-ˈdē-nəm; -d(y)u̇-ˈäd-ᵊn-əm
\
\
plural megaduodena\ -ˈdē-nə; -ᵊn-ə
\
or megaduodenums
\
or megaduodenums
Medical Definition of megaduodenum
: a congenital or acquired dilation and elongation of the duodenum with hypertrophy of all layers that presents as a feeling of gastric fullness, epigastric pain, belching, heartburn, and nausea with vomiting sometimes of food eaten 24 hours before