[ From Ilium. ] A combining form used in anatomy to denote connection with, or relation to, the ilium;
a. (Anat.) Pertaining to the ilium and femur;
a. (Anat.) Pertaining to the iliac and lumbar regions;
prop. n. Ilium, or Troy, the ancient city in Asia Minor that was the site of the Trojan War; -- a variant spelling of
n. (Anat.) The great flexor muscle of the hip joint, divisible into two parts, the iliac and great psoas, -- often regarded as distinct muscles. [ 1913 Webster ]