ilium
/ˈɪliəm/
noun
- The large, broad bone at the top of the hip bone in humans and many animals.
- The doctor pointed to the ilium on the X-ray to show where the fracture was.
- The dinosaur fossil had a well-preserved ilium that helped scientists understand how it walked.
- In anatomy class, we learned that the ilium forms the upper part of the pelvis.