Ilion /ˈɪliən/
  Il·i·um n.  Anat. The dorsal one of the three principal bones comprising either lateral half of the pelvis; the dorsal or upper part of the hip bone. See Innominate bone, under Innominate. [Written also ilion, and ileum.]
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  Ilion
       n : an ancient city in Asia Minor that was the site of the
           Trojan War [syn: Troy, Ilium]