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 (săk′rō-ĭl′ē-ăk′, sā′krō-)
Of, relating to, or affecting the sacrum and ilium and their articulation or associated ligaments.
The sacroiliac region or cartilage.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌseɪkrəʊˈɪlɪˌæk; ˌsæk-) anatomy
(Anatomy) of or relating to the sacrum and ilium, their articulation, or their associated ligaments
(Anatomy) the joint where these bones meet
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌsæk roʊˈɪl iˌæk, ˌseɪ kroʊ-)

1. the joint where the sacrum and ilium meet.
2. of or pertaining to this joint or its associated ligaments.
[1825–35; sacr(um) + -o- + ili(um) + -ac]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


adj sacroilíaco or sacroiliaco
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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References in periodicals archive ?
In sacroiliac disease, pain is extreme on rotation of the vertebral column and is worst at the end of forward flexion.
The percentage of low back pain with radicular features is similar to that observed in the North Carolina Back Pain Project.[13] In contrast to previous work based in specialty clinics,4 however, the prevalence of such syndromes as coccydynia, piriformis syndrome and trigger points, as well as combined syndromes, is quite low, while sacroiliac disease, posterior facet syndrome, and chronic back strain are relatively more common.
In addition, our experience suggests that primary care clinicians would need to learn only a limited number of additional clinical syndromes in order to take care of almost all of their patients, adding chronic back strain, sacroiliac disease, and facet syndromes to the "black box" approach to identifying low back strain and radicular syndromes they already identify routinely.