noun. A triangular bone made up of five fused vertebrae and forming the posterior section of the pelvis.

noun. A compound bone resulting from the ankylosis of two or more vertebræ between the lumbar and the coccygeal region of the spine, mostly those which unite with the ilia; the os sacrum.

noun. That part of the vertebral column which is directly connected with, or forms a part of, the pelvis.

noun. A large triangular bone located at the base of the spine between the two hipbones of pelvis and formed from fused vertebrae.

noun. wedge-shaped bone consisting of five fused vertebrae forming the posterior part of the pelvis; its base connects with the lowest lumbar vertebra and its tip with the coccyx

"Next, bring your attention to your sacrum, which houses your sacred sexual energies and is the root of your psychophysical structure the word sacrum means “sacred place” in Latin."

cornua of the sacrum  curve of the sacrum  lateral masses of the sacrum  promontory of the sacrum  

sacral  

bone  os  

buttock  coccyx  collarbone  ense  femur  

sacra