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Definition

noun

The uppermost and the largest bone of the pelvis that is composed of two major parts in humans: the body and the ala. This bone articulates on the inner aspect with the sacrum.

Supplement

The iliac bone or the ilium is found in most vertebrates such as mammals, reptiles (but not all snakes) and birds. It is not found in bony fish.

Also called: ilium

See also: pelvis, biiliac width