Definition of "iliac" [il•i•ac]

• Of, relating to, or situated near the ilium. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "When the pus forms in front of the joint, it may spread laterally in the iliac fossa as an _iliac abscess_ or may gravitate downwards in the hollow of the sacrum and emerge on the buttock through the sacro-sciatic foramen -- _sub-gluteal abscess_."
• "The right common iliac is shorter than the left, nearly vertical in its direction, and ascends behind and then lateral to its corresponding artery."
• "The lengths of the common iliac and hypogastric arteries bear an inverse proportion to each other, the hypogastric artery being long when the common iliac is short, and vice versa."