Breadcrumb Home > Dictionary > Index D duodenum: Meaning and Definition of Find definitions for: du•o•de•num Pronunciation: (d"u-dē'num, dy"-&wdspcd-od'n-um, dy-), [key] — pl. du•o•de•na du•o•de•nums. the first portion of the small intestine, from the stomach to the jejunum. See diag. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: duodenum (Thesaurus) duodenojejunostomy duologue TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: raconteur Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language