duodenum

[doo-uh-dee-nuhm, dyoo-; doo-od-n-uhm, dyoo-]
noun, plural duodena [doo-uh-dee-nuh, dyoo-, doo-od-n-uh, dyoo-] , duodenums. Anatomy, Zoology.
the first portion of the small intestine, from the stomach to the jejunum.

Origin:
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 Dictionary, © Random House, Inc. 2014.
Cite This Source Link To duodenum
Collins
World English Dictionary
duodenum (ˌdjuːəʊˈdiːnəm)
 
n , pl -na, -nums
the first part of the small intestine, between the stomach and the jejunum
 
[C14: from Medieval Latin, shortened from intestinum duodenum digitorum intestine of twelve fingers' length, from Latin duodēnī twelve each]
 
duo'denal
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

duodenum
late 14c., from M.L. duodenum digitorium "space of twelve digits," from L. duodeni "twelve each." Coined by Gerard of Cremona (d.1187), who translated "Canon Avicennae," a loan-transl. of Gk. dodekadaktylon, lit. "twelve fingers long," the intestine part so called by Gk. physician Herophilus (c.353-280
B.C.E.) for its length, about equal to the breadth of twelve fingers.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

duodenum du·o·de·num (dōō'ə-dē'nəm, dyōō'-, dōō-ŏd'n-əm, dyōō-)
n. pl. du·o·de·nums or du·o·de·na (dōō'ə-dē'nə, dyōō'-, dōō-ŏd'n-ə, dyōō-)
The beginning portion of the small intestine, starting at the lower end of the stomach and extending to the jejunum.


du'o·de'nal (dōō'ə-dē'nəl, dyōō'-, dōō-ŏd'n-əl, dyōō-) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
duodenum   (d'ə-dē'nəm, d-ŏd'n-əm)  Pronunciation Key 
Plural duodena or duodenums
The beginning part of the small intestine, starting at the lower end of the stomach and extending to the jejunum.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Cultural Dictionary
duodenum [(dooh-uh-dee-nuhm, dooh-od-n-uhm)]

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

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Example sentences
The duodenum is at first suspended by a mesentery, and projects forward in the form of a loop.
The mucus layer, which coats the stomach and duodenum, forms the first line of defense.
Severe abdominal pain, with or without evidence of bleeding, may indicate that the ulcer has perforated the stomach or duodenum.
The duodenum small bowel and proximal colon are intact and unremarkable.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT

;