[sak-roh-il-ee-ak, sey-kroh-]Anatomy
  1. of, relating to, or affecting this joint.

Origin of sacroiliac

First recorded in 1825–35; sacro- + iliac Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sacroiliac

Historical Examples of sacroiliac

  • For a man who is pushing 60, I'm in pretty good shape except for my sacroiliac.

    All That Goes Up

    Kirby Brooks

British Dictionary definitions for sacroiliac


  1. of or relating to the sacrum and ilium, their articulation, or their associated ligaments
  1. the joint where these bones meet
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

sacroiliac in Medicine


[săk′rō-ĭlē-ăk′, sā′krō-]
  1. Of, relating to, or affecting the sacrum and ilium and their articulation or associated ligaments.
  1. The sacroiliac region or cartilage.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.