sacroiliac

(sak′rō il′ē ak′, sā′krō-)

adjective

of the sacrum and the ilium; esp., designating the joint between them

Origin: sacro- + iliac

noun

the joint or cartilage between the sacrum and the ilium

See sacroiliac in American Heritage Dictionary 4

adjective

Of, relating to, or affecting the sacrum and ilium and their articulation or associated ligaments.

noun

The sacroiliac region or cartilage.

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