American English

Definition of ileum noun from the Oxford Advanced American Dictionary

 

ileum

 noun
noun
NAmE//ˈɪliəm//
 
(pl. ilea
NAmE//ˈɪliə//
 
)
(anatomy)
 
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the third part of the small intestine compare duodenum, jejunum
NAmE//ˈɪliəl//
 
adjective
See the Oxford Advanced Learner's Dictionary entry: ileum