[je.ju.num] n [ME, fr. ML, fr. neut. of L jejunus] (14c): 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
JEJUNUM
Meaning of JEJUNUM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012