duodenum
noun
du·o·de·num
ˌdü-ə-ˈdē-nəm 
du̇-ˈä-də-nəm
du̇-ˈä-də-nəm
also (ˌ)dyü-
plural duodena
ˌdü-ə-ˈdē-nə
du̇-ˈä-də-nə
or duodenums
: the first part of the small intestine extending from the pylorus to the jejunum
Examples of duodenum in a Sentence
Recent Examples on the Web
Peptic Ulcer Disease Peptic ulcer disease is a condition in which open sores develop in the lining of the stomach and duodenum (the first part of the small intestine).
—
Steffini Stalos, Verywell Health, 3 Oct. 2024
Sometimes, the surgeon may insert a stent from the gallbladder to the first part of the intestine (duodenum).
—Ann Pietrangelo, Verywell Health, 4 Sep. 2024
Next, the second part of the small intestine, the jejunum, is surgically separated from the first section (the duodenum) and the last section (the ileum).
—Amber J. Tresca, Verywell Health, 5 July 2024
The sore develops when gastric acids that help your body digest food damage the walls of your stomach or duodenum.
—Lindsay Curtis, Health, 10 July 2024
See all Example Sentences for duodenum 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Steffini Stalos, Verywell Health, 3 Oct. 2024
Sometimes, the surgeon may insert a stent from the gallbladder to the first part of the intestine (duodenum).
—Ann Pietrangelo, Verywell Health, 4 Sep. 2024
Next, the second part of the small intestine, the jejunum, is surgically separated from the first section (the duodenum) and the last section (the ileum).
—Amber J. Tresca, Verywell Health, 5 July 2024
The sore develops when gastric acids that help your body digest food damage the walls of your stomach or duodenum.
—Lindsay Curtis, Health, 10 July 2024
See all Example Sentences for duodenum
Dictionary Entries Near duodenum
Cite this Entry
“Duodenum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duodenum. Accessed 28 Nov. 2024.
Copy CitationKids Definition
duodenum
noun
du·o·de·num
ˌd(y)ü-ə-ˈdē-nəm
d(y)u̇-ˈäd-ᵊn-əm
d(y)u̇-ˈäd-ᵊn-əm
plural duodena
-ˈdē-nə
-ᵊn-ə
or duodenums
: the first part of the small intestine extending from the opening from the stomach into the small intestine to the jejunum
Medical Definition
duodenum
noun
du·o·de·num
ˌd(y)ü-ə-ˈdē-nəm
d(y)u̇-ˈäd-ᵊn-əm
d(y)u̇-ˈäd-ᵊn-əm
plural duodena
-ˈdē-nə, -ᵊn-ə
or duodenums
or duodenums
: the first, shortest, and widest part of the small intestine that in humans is about 10 inches (25 centimeters) long and that extends from the pylorus to the undersurface of the liver where it descends for a variable distance and receives the bile and pancreatic ducts and then bends to the left and finally upward to join the jejunum near the second lumbar vertebra
Love words? Need even more definitions?
Merriam-Webster unabridged
Share