# ilium

> English word · Noun · IPA /ˈɪlɪəm/ · frequency rank #72,415

## Definitions
1. The upper and widest of the three bones that make up each side of the hipbone.
2. The ileum, part of the small intestine (in modern usage, misspelling of ileum).

## Etymology
Borrowed from Latin īlium (“lower abdomen”), from īle (“flank”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/ilium