sacrospinous en · ADJ
Etymology
From sacro- + spinous.
Meanings
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(not-comparable) Pertaining to the sacrum and spine.
The Dissector spits out Latin terms for ligaments — sacrospinous, sacrotuberous; Montross hears them “like a call to prayer.”
2007 June 24, Mary Roach, “Love and Human Remains”, in New York Times: