NCIt related terms : sacrum [sacral vertebrae I-V]; sacrum [sacral vertebrae I - V]; os sacrum [vertebrae sacrales I - V]; fused sacrum;
NCIt definition : The triangular bone, made up of 5 fused bones of the spine, located in the lower area
of the spine between the fifth lumbar vertebra and the coccyx.;
Alternative definition : NCI-GLOSS: The large, triangle-shaped bone in the lower spine that forms part of the
pelvis. It is made of 5 fused bones of the spine.; CDISC: The triangular bone, made up of 5 fused bones of the spine, located in the
lower area of the spine between the fifth lumbar vertebra and the coccyx. (NCI); UBERON: A collection of sacral vertebrae in the sacral region that are fused and part
of the bony pelvis.;