Pronunciation: (il'ē-um), [key]
—pl. il•e•aPronunciation: (il'ē-u). [key]
1. Anat.the third and lowest division of the small intestine, extending from the jejunum to the cecum. See diag. under intestine.
2. Zool.the anterior portion of the hindgut of an insect or other arthropod.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.