Noun: sacrum (sacra,sacrums) sa-krum or sey-krum
- 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
"The sacrum plays a crucial role in transferring weight from the spine to the pelvis"
Derived forms: sacrums, sacra
Part of: hip, pelvic arch, pelvic girdle, pelvis
Encyclopedia: Sacrum