ILEUM
ileum
(noun) the part of the small intestine between the jejunum and the cecum
Source: WordNet® 3.1
Etymology
Noun
ileum (plural ilea)
(anatomy) The last, and usually the longest, division of the small intestine; the part between the jejunum and large intestine.
Source: Wiktionary
Il"e*um, n. Etym: [L. ile, ileum, ilium, pl. ilia, groin, flank.]
1. (Anat.)
Definition: The last, and usually the longest, division of the small
intestine; the part between the jejunum and large intestine. [Written
also ileon, and ilium.]
2. (Anat.)
Definition: See Ilium. [R.]
Note: Most modern writers restrict ileum to the division of the
intestine and ilium to the pelvic bone.
Source: Webster’s Unabridged Dictionary 1913 Edition