Definition of sacroiliac
(Entry 1 of 2)
: of, relating to, or being the region of the joint between the sacrum and ilium
sacroiliac pain
sacroiliac
nounDefinition of sacroiliac (Entry 2 of 2)
: the sacroiliac region
also
: its firm fibrous cartilage
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Merriam-Webster unabridged
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Time Traveler for sacroiliac
The first known use of sacroiliac was in 1831
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