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Sacrum
Pronunciation
Definition 1
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. (NCI Dictionary)
Definition 2
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 Thesaurus)
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The amphiarthrodial joint between the sacrum and coccyx.
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One of the usually five fused vertebrae forming the triangular bone just below the lumbar vertebrae.
The prominence on the lateral surface of the sacrum, posterior to the auricular surface of the sacrum.
