rhizoverbBeta
DictionaryiliumUpper hipbone
noun

ilium

IL-ee-um/ˈɪliəm/

The broad upper part of the hipbone.

The ilium forms the broad upper part of each hipbone.

An anatomically accurate adult bony pelvis in anterior view, with one ilium selectively tinted muted ochre so its broad upper wing reads clearly against the remaining ivory bones.
Etymology
iliumLatingroin, flank

Latin ilia supplied a regional name for the groin or flank. The anatomical phrase os ilium, 'bone of the flank,' applied that location to the broad upper pelvic bone.

In context

Corporis1:08
while the whole thing is called the pelvis we refer to these big wings as the ilium
The Pelvic Floor Muscles, Explained | Corporis

More examples

  • Several muscles attach to the outer surface of the ilium.
  • The X-ray shows a fracture in her left ilium.
  • The model shows the two ilia on opposite sides of the pelvis.

Forms

ilium · ilia

iliac adjective — Relating to the ilium of the pelvis.