# sacroiliac

> English word · Adjective · IPA /ˌsækɹoʊˈɪliˌæk/ · frequency rank #97,517

## Definitions
1. Relating to the sacrum and ilium, or to the region of the lower back where they are located.

## Etymology
From sacro- + iliac.

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