from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The uppermost and widest of the three bones constituting either of the lateral halves of the pelvis.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The ileum.
- n. The upper and widest of the three bones that make up each side of the hipbone and pelvis.
Late Latin īlium, groin, flank, variant of Latin īlia.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin īlium ("lower abdomen"), from īle ("flank"). (Wiktionary)