First Known Use: 14th century
Dictionary
jejunum
noun je·ju·num \ji-ˈjü-nəm\
plural je·ju·na \-nə\
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
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Origin of JEJUNUM
Middle English, from Medieval Latin, from neuter of Latin jejunus
Medical Dictionary
jejunum
noun je·ju·num \ji-ˈjü-nəm\
plural je·ju·na \-nə\
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
Illustration of JEJUNUM
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