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Definition of SCIATIC NOTCH
: either of two notches on the dorsal border of the hip bone on each side that when closed off by ligaments form the corresponding sciatic foramina: a: a relatively large notch just above the ischial spine that is converted into the greater sciatic foramen by the sacrospinous ligament—called also greater sciatic notchb: a smaller notch just below the ischial spine that is converted to the lesser sciatic foramen by the sacrospinous ligament and the sacrotuberous ligament—called also lesser sciatic notch
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