Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The uppermost and widest of the three bones constituting either of the lateral halves of the pelvis.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun anatomy, obsolete The ileum.
  • noun anatomy The upper and widest of the three bones that make up each side of the hipbone and pelvis.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Late Latin īlium, groin, flank, variant of Latin īlia.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin īlium ("lower abdomen"), from īle ("flank").

Examples

  • The ilium is short anterposteriorly relative to the length of the pelvis.

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  • Hence the ilium is a pleurapophysis, the ischium and pubis are both hæmapophyses.

    Form and Function A Contribution to the History of Animal Morphology

  • In the first two groups the pubis projects downward and forward as it does in the majority of reptiles, and the ilium is a high rounded plate; while in the others the pelvis is of a wholly different type, strongly suggesting the pelvis of birds.

    Dinosaurs With Special Reference to the American Museum Collections

  • The cavity of the lesser pelvis is bounded in front and below by the pubic symphysis and the superior rami of the pubes; above and behind, by the pelvic surfaces of the sacrum and coccyx, which, curving forward above and below, contract the superior and inferior apertures of the cavity; laterally, by a broad, smooth, quadrangular area of bone, corresponding to the inner surfaces of the body and superior ramus of the ischium and that part of the ilium which is below the arcuate line.

    II. Osteology. 6c. 2. The Pelvis

  • A left 'ilium', almost perfect, and belonging to the femur: a fragment of the right 'scapula'; the anterior extremity of a rib of the right side; and the same part of a rib of the left side; the hinder part of a rib of the right side; and lastly, two hinder portions and one middle portion of ribs, which from their unusually rounded shape, and abrupt curvature, more resemble the ribs of a carnivorous animal than those of a man.

    Lectures and Essays

  • A left 'ilium', almost perfect, and belonging to the femur: a fragment of the right 'scapula'; the anterior extremity of a rib of the right side; and the same part of a rib of the left side; the hinder part of a rib of the right side; and lastly, two hinder portions and one middle portion of ribs, which from their unusually rounded shape, and abrupt curvature, more resemble the ribs of a carnivorous animal than those of a man.

    On Some Fossil Remains of Man

  • A statement from Barry Simpson, racing manager to the owner, Sir Robert Ogden, said a fracture to his ilium wing had been discovered by "a full-scale veterinary investigation" last summer.

    Lame Pandorama out of Hennessy and doubtful for Gold Cup

  • While some people eat bovine tonsils, in the United States they are considered a Specified Risk Material associated with mad cow's disease (BSE) and therefore prohibited along with the distal ilium by the FDA.

    Wednesday Breakfast Bender

  • She said that I had a lack of motion in my sacrum and ilium.

    Misty

  • She said that I had a lack of motion in my sacrum and ilium.

    Misty

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