duodenum
noun
du·o·de·num
| \ ˌdü-ə-ˈdē-nəm
, du̇-ˈä-də-nəm
also (ˌ)dyü-\
, du̇-ˈä-də-nəm
also (ˌ)dyü-\
plural duodena\ ˌdü-ə-ˈdē-nə
, du̇-ˈä-də-nə \
or duodenums
, du̇-ˈä-də-nə \
or duodenums
Definition of duodenum
: the first part of the small intestine extending from the pylorus to the jejunum
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Other Words from duodenum
duodenal
\ ˌdü-ə-ˈdē-nᵊl
, du̇-ˈä-də-nəl
\
adjective
, du̇-ˈä-də-nəl
\
adjective
Examples of duodenum in a Sentence
Recent Examples on the Web
The tube is inserted through the patient’s mouth and stomach, then into the first part of the small intestine, called the duodenum. — Roni Caryn Rabin, New York Times, "These Medical Devices Are Inserted Into 500,000 Patients Each Year — but Are Tough to Sterilize," 6 Aug. 2019 Duke University researchers have observed rudimentary, but functional, stomachs, small intestines, and duodenums growing inside cancerous lungs — illustrating how varied and plastic these metastatic cells can be. — Meghana Keshavan, STAT, "Scientists find mini gastrointestinal tract growing inside tumor," 29 Mar. 2018 He was hospitalized, but physicians were unaware of a perforated duodenum, a portion of the small intestine, the complaint says. — Megan Cassidy, azcentral, "After recent $7 million settlement, a look at 5 other payouts from Arpaio-era jail deaths," 9 Mar. 2018 The researchers speculate that bacteria may invade pancreatic tumors by migrating from the duodenum, the top section of the small intestine. — Beth Mole, Ars Technica, "See jerkface bacteria hiding in tumors and gobbling chemotherapy drugs," 17 Sep. 2017These example sentences are selected automatically from various online news sources to reflect current usage of the word 'duodenum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for duodenum
duodenum
noun
English Language Learners Definition of duodenum
medical
: the part of the small intestine that is right below your stomach
See the full definition for duodenum in the English Language Learners Dictionary
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
Medical Definition of duodenum
: 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
Other Words from duodenum
duodenal
\ -ˈdēn-ᵊl
, -ᵊn-əl
\
adjective
, -ᵊn-əl
\
adjective