noun, plural sac·ra [sak-ruh, sey-kruh] /ˈsæk rə, ˈseɪ krə/. Anatomy.
Origin of sacrum
Examples from the Web for sacrum
The bone immediately below the sacrum, called the coccyx, is essentially the representative of the tail in man.Degeneracy|Eugene S. Talbot
Joined to the lower end of the sacrum is the coccyx, or cuckoo-bone, a tapering series of little bones.A Practical Physiology|Albert F. Blaisdell
The bodies of the vertebræ forming the sacrum are similar in length to those of the back.Dragons of the Air|H. G. Seeley
There are two vertebral columns, which usually are separate down to the sacrum, and they converge at the lower end.Essays In Pastoral Medicine|Austin Malley
Some rheumatic pains in limbs, and heaviness about the sacrum.