Dictionary.com
definitions
  • synonyms

duodenum

[doo-uh-dee-nuh m, dyoo-; doo-od-n-uh m, dyoo-]
See more synonyms for duodenum on Thesaurus.com
noun, plural du·o·de·na [doo-uh-dee-nuh, dyoo-; doo-od-n-uh, dyoo-] /ˌdu əˈdi nə, ˌdyu-; duˈɒd n ə, dyu-/, du·o·de·nums. Anatomy, Zoology.
  1. the first portion of the small intestine, from the stomach to the jejunum.
Show More

Origin of duodenum

1350–1400; Middle English < Medieval Latin, by ellipsis from intestīnum duodēnum digitōrum intestine of twelve fingerbreadths, with original genitive plural construed as neuter singular; Latin duodēnī twelve each (here lacking distributive sense)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

innardsbellypaunchentrailstummyviscerabowelsintestinesventerduodenumileumjejunumvillus

Examples from the Web for duodenum

Historical Examples

  • Emetics invert the motions of the stomach, duodenum, and œsophagus.

    Zoonomia, Vol. II

    Erasmus Darwin

  • The mucous membrane of the duodenum was also swollen and slightly red.

  • Some of the ulcers had nearly perforated the walls of the stomach and duodenum.

  • You should see how sweet a cross-section 255 of the duodenum of a cat is under the microscope.

    Daddy Long-Legs

    Jean Webster

  • It is collected by the biliary ducts to be conveyed into the duodenum.

    Encyclopedia of Diet

    Eugene Christian


British Dictionary definitions for duodenum

duodenum

noun plural -na (-nə) or -nums
  1. the first part of the small intestine, between the stomach and the jejunum
Show More
Derived Formsduodenal, adjective

Word Origin

C14: from Medieval Latin, shortened from intestinum duodenum digitorum intestine of twelve fingers' length, from Latin duodēnī twelve each
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for duodenum

n.

late 14c., from Medieval Latin duodenum digitorium "space of twelve digits," from Latin duodeni "twelve each." Coined by Gerard of Cremona (d.1187), who translated "Canon Avicennae," a loan-translation of Greek dodekadaktylon, literally "twelve fingers long," the intestine part so called by Greek physician Herophilus (c.353-280 B.C.E.) for its length, about equal to the breadth of twelve fingers.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

duodenum in Medicine

duodenum

(dōō′ə-dēnəm, dōō-ŏdn-əm)
n. pl. du•o•de•nums
  1. The beginning portion of the small intestine, starting at the lower end of the stomach and extending to the jejunum.
Show More
Related formsdu′o•denal (dōō′ə-dēnəl, dōō-ŏdn-əl) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

duodenum in Science

duodenum

[dōō′ə-dēnəm, dōō-ŏdn-əm]
Plural duodena duodenums
  1. The beginning part of the small intestine, starting at the lower end of the stomach and extending to the jejunum.
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

duodenum in Culture

duodenum

[(dooh-uh-dee-nuhm, dooh-od-n-uhm)]

The first part of the small intestine, located just below the stomach. (See digestive system.)

Show More
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.