Ilium

• POS: Noun
• HYPHEN: Il=i=um

CIDE DICTIONARY

Ilium, n. [See Ileum.].

 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.  [1913 Webster]

OXFORD DICTIONARY

Ilium, n. (pl. ilia)
1 the bone forming the upper part of each half of the human pelvis.
2 the corresponding bone in animals.

Etymology

ME f. L