sacral promontory

(redirected from pelvic promontory)

sa·cral prom·on·to·ry

the most prominent anterior projection of the base of the sacrum.


a projecting process or eminence.

middle ear promontory
a bulge in the medial wall of the middle ear overhanging the cochlea.
sacral promontory
in the midline of the ventral surface of the lumbosacral junction, a lip at the junction of the cranial extremity of the sacrum with its ventral surface, an easily recognized prominence of the roof of the pelvic cavity.