Il·i·ac, a.
  1. Anat. Pertaining to, or in the region of, the ilium, or dorsal bone of the pelvis; as, the iliac artery. [Written also ileac.]
  2. See Ileac, 1. [R.]
  Iliac crest, the upper margin of the ilium.
  Iliac passion. See Ileus.
  Iliac region, a region of the abdomen, on either side of the hypogastric regions, and below the lumbar regions.
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