ilium

¹ American  

[il-ee-uhm] / ˈɪl i əm /

noun

Anatomy.

plural

ilia

1. the broad, upper portion of either hipbone.

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Ilium ² American  

[il-ee-uhm] / ˈɪl i əm /

noun

1. Latin name of ancient Troy.

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ilium ¹ British  

/ ˈɪlɪəm /

noun

1. the uppermost and widest of the three sections of the hipbone

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Ilium ² British  

/ ˈɪlɪəm /

noun

1. the Latin name for ancient Troy

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ilium Scientific  

/ ĭl′ē-əm /

plural

ilia

1. The uppermost and widest of the three bones that fuse together to form each of the hipbones.

2. See more at skeleton

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Other Word Forms

• preilium noun
• subilium noun

Etymology

Origin of ilium

1705–1710; < New Latin, special use of Medieval Latin īlium, as singular of Latin īlia; ileum

Example Sentences

That uniformity, the researchers say, is a sign that natural selection put—and continues to put—intense pressure on the ilium to develop in a highly specific way.

From Science Magazine • Aug. 16, 2022

But among modern humans, those regulatory bits in the ilium show strikingly little variation.

From Science Magazine • Aug. 16, 2022

The largely immobile sacroiliac joint is supported by a pair of strong ligaments that are attached between the sacrum and ilium portions of the hip bone.

From Textbooks • Jun. 19, 2013

Growing layers of cartilage also form synchondroses that join together the ilium, ischium, and pubic portions of the hip bone during childhood and adolescence.

From Textbooks • Jun. 19, 2013

The ischium and postacetabular ilium originally enclose the ischiadic notch or incisura ischiadica.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" by Various