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BNC: 31875 COCA: 0
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jejunum

noun

je·​ju·​num ji-ˈjü-nəm How to pronounce jejunum (audio)
plural jejuna ji-ˈjü-nə How to pronounce jejunum (audio)
: the section of the small intestine that comprises the first two fifths beyond the duodenum and that is larger, thicker-walled, and more vascular and has more circular folds than the ileum

Example Sentences

Recent Examples on the Web The primary function of the jejunum is to absorb water and nutrients from food—specifically, sugars, amino acids, and fatty acids—so damage in this area can lead to nutrient deficiencies and diarrhea. SELF, 11 Feb. 2022 View Sample Sign Up Now Instead, the sugar and other components of fruit quickly move farther down the small intestine to the jejunum and ileum. Markham Heid, Time, 6 June 2018

Word History

Etymology

Middle English, from Medieval Latin, from neuter of Latin jejunus

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of jejunum was in the 14th century
BNC: 31875 COCA: 0

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