1. sacroiliac - Noun
2. sacroiliac - Adjective
sacroiliac (not comparable)
(anatomy) Relating to the sacrum and ilium, or to the region of the lower back where they are located.
sacroiliac (plural sacroiliacs)
(anatomy) The region of the sacrum and the ilium in the lower back.
SoutheastHEALTH Neurosurgeon Kevin Vaught, MD, of Regional Brain and Spine, is the first neurosurgeon in the U.S. to perform a sacroiliac joint (SI) fusion using the latest generation of the Mazor XTM surgical assurance platform. Source: Internet
Orthopedic surgeon Dr. Clay Frank, who practices and performs procedures at the Midwest Orthopedic Specialty Hospital, was introduced to sacroiliac (SI) joint pain during his spine surgery fellowship in North Carolina more than 20 years ago. Source: Internet