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sacroiliac

sac·ro·il·i·ac

sacroiliac

 
pronunciation:
sae kro I li aek [or] seI kro I li aek
parts of speech:
noun, adjective
part of speech: noun
definition: the sacrum bone and the ilium of the pelvis, along with their connective tissues.
 
part of speech: adjective
definition: of, pertaining to, or affecting the sacrum, the ilium, and the cartilage and ligaments between them.