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Definitions

duodenum

[doo-uh-dee-nuhm, dyoo-, doo-od-n-uhm, dyoo-] / ˌdu əˈdi nəm, ˌdyu-, duˈɒd n əm, dyu- /


NOUN
small intestine
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Duodenal mucosal resurfacing is an investigational endoscopic treatment that uses controlled heat to remove damaged tissue from the inner lining of the duodenum, the first section of the small intestine just below the stomach.

From Science Daily • Apr. 23, 2026

He had a procedure which resulted in the removal of part of his pancreas, the duodenum, the gall bladder and part of his liver.

From BBC • Dec. 22, 2025

In 1994 he performed the world’s first six-organ transplant, replacing a patient’s stomach, small intestine, duodenum, pancreas, liver and kidney in a single operation.

From New York Times • Jan. 15, 2024

Calne also helped carry out the world’s first triple liver, lung and heart transplant in 1986 and in 1994 led a six-organ transplant of liver, kidney, stomach, duodenum, small intestine and pancreas.

From Seattle Times • Jan. 7, 2024

It has also been found in the reed and duodenum of the latter animal by Rudolphi.

From A Treatise on Sheep: The Best Means for their Improvement, General Management, and the Treatment of their Diseases. by Blacklock, Ambrose




Vocabulary lists containing duodenum