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duodenum

noun

du·​o·​de·​num ˌdü-ə-ˈdē-nəm How to pronounce duodenum (audio) du̇-ˈä-də-nəm How to pronounce duodenum (audio)
 also  (ˌ)dyü-
plural duodena ˌdü-ə-ˈdē-nə How to pronounce duodenum (audio)
du̇-ˈä-də-nə
or duodenums
: the first part of the small intestine extending from the pylorus to the jejunum

Example Sentences

Recent Examples on the Web Use Sherlock Holmesian deduction to locate the start of Nordic Flower (5.14b) among a bewildering grouping of quickdraws dangling like villi in the duodenum of Scandinavian jotun. Jeff Jackson, Outside Online, 28 July 2022 Gastroduodenal occurs when your stomach and the top of the small intestine (your duodenum) are inflamed. SELF, 11 Feb. 2022 And that led to development of what's called the sweat test, which really took the place of that putting the tube down the throat and getting samples of the secretions and the duodenum for making the diagnosis. Katie Hafner, Scientific American, 11 Nov. 2021 Most ulcers, both in the stomach and the duodenum, are due to an infection called Helicobacter pylori, which was discovered in the 1980s. Dr. Keith Roach, oregonlive, 31 May 2021 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, 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, 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, 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, 17 Sep. 2017 See More

Word History

Etymology

Middle English, from Medieval Latin, from Latin duodeni twelve each, from duodecim twelve; from its length, about 12 fingers' breadth

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of duodenum was in the 14th century

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