Il"i*ac (?), a. [L. Iliacus, Gr.
?. See Iliad.] Pertaining to ancient Ilium, or
Troy. Gladstone.
Il"i*ac, a. [Cf. F. iliaque. See
Ileum, and cf. Jade a stone.] 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.