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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 jejuna (audio) \

Definition of jejunum

: 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

Examples of jejunum in a Sentence

Recent Examples on the Web

 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, "Is It Possible To Eat Too Much Fruit?," 6 June 2018

First Known Use of jejunum

14th century, in the meaning defined above

History and Etymology for jejunum

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

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More Definitions for jejunum

jejunum

noun
je·​ju·​num | \ ji-ˈjü-nəm How to pronounce jejunum (audio) \
plural jejuna\ -​nə How to pronounce jejuna (audio) \

Medical Definition of jejunum

: 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 and fewer Peyer's patches than the ileum

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