• WordNet 3.6
    • n ileum the part of the small intestine between the jejunum and the cecum
    • ***
Webster's Revised Unabridged Dictionary
    • Ileum (Anat) See Ilium.
    • Ileum (Anat) The last, and usually the longest, division of the small intestine; the part between the jejunum and large intestine.
    • ***
Century Dictionary and Cyclopedia
    • n ileum In anatomy, the lower one of three parts into which the small intestine is divisible, continuous with the jejunum and ending in the large intestine: more fully called intestinum ileum, from its many coils or convolutions. In man the ileum is taken to be the terminal three fifths of the small intestine, though its beginning is indistinguishable from the ending of the jejunum; but it ends abruptly at the cæcum, or commencement of the colon. The ileum has on an average a smaller diameter than the preceding part of the intestine, and its coats are thinner and less vascular. It lies chiefly in the umbilical, hypogastric, and right iliac regions of the abdomen. In many animals, especially those which lack a cæcum or cæca, no ileum is certainly distinguishable either from preceding or succeeding portions of the intestine; but whenever the beginning of a colon can be determined, a preceding portion of the intestinal tract, of however indefinite extent, is regarded as an ileum. See cuts under ileocæcal and intestine.
    • n ileum Hence, in general, the lower part, of indeterminate extent, of the small intestine; or, when there is no distinction between large and small intestine, a part of the intestine preceding the cæcum or the cæca.
    • n ileum In entomology, a narrow part of the intestine of an insect, generally adjoining the ventriculus or stomach, and divided from the broader colon or second intestine by a constriction or valve. The ileum may be long and convoluted or straight and short; in the Hemiptera and some Neuroptera it is entirely wanting.
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Chambers's Twentieth Century Dictionary
    • ns Ileum the lower part of the smaller intestine in man
    • ***


  • Christopher Marlowe
    “Was this the face that launched a thousand ships, and burnt the topless towers of Ileum?”


Webster's Revised Unabridged Dictionary
L. ile, ileum, ilium, pl. ilia, groin, flank
Chambers's Twentieth Century Dictionary
Fr., through a Low L. iliacusilia, the flanks, the groin.


In literature:

M. Gardy said he had observed that the greater part of the grains about the ileum, noted on the 1st of August, had disappeared next day.
"She Stands Accused" by Victor MacClure
Denby discovered a large egg-cup in the ileum of a man.
"Anomalies and Curiosities of Medicine" by George M. Gould
The remaining portion is named the ileum, because of the many folds into which it is thrown.
"A Practical Physiology" by Albert F. Blaisdell
The pelvis is peculiar in some points, such as the form of the ileum and the arrangement of its surfaces, resembling the human pelvis.
"Natural History of the Mammalia of India and Ceylon" by Robert A. Sterndale
Gastro-ileal folds: occur in some insects at the junction of the chylific ventricle with the ileum and serve as a valve.
"Explanation of Terms Used in Entomology" by John. B. Smith
The ileum looked of that dark and livid hue, which is observed in membranous parts tending to mortification.
"An Essay on the Shaking Palsy" by James Parkinson
The ILEUM is smaller, and thinner in texture, and somewhat paler, than the jejunum.
"A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)" by Calvin Cutter
The solitary glands are frequently enlarged and ulcerated, like those of the ileum.
"A System of Practical Medicine by American Authors, Vol. I" by Various

In news:

It is caused by Lawsonia intracellularis, a bacteria that affects the terminal part of the small intestine, or ileum.
There are three parts of the small intestine, the duodenum, the ileum and the jejunum.
In approximately 40% of patients, Crohn 's disease affects the terminal ileum (Figure) and the cecum.
Terminal ileum, Crohn 's diseae.

In science:

Their count in ileum is 108 CFU/ml of chymus.
Model of pathogenesis of psoriasis. Part 1. Systemic psoriatic process