1. the uppermost and largest bone of the hip, forming the upper part of each side of the pelvis
Usage: anatomy

Examples

• The ilium connects to the sacrum at the back of the pelvis.
• A fracture of the ilium can cause severe hip pain.
• The doctor pointed to the ilium on the X-ray image.
• The ilium forms the prominent part of the hip bone.
• Physical therapists study the anatomy of the ilium and surrounding muscles.
• The ilium provides attachment points for several important muscles.