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/ˈsækɹəm/ · noun
(anatomy) A large triangular bone at the base of the spine, located between the two ilia (wings of the pelvis) and formed from vertebrae that fuse in adulthood..
Use sacrum when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Sacrum means (anatomy) A large triangular bone at the base of the spine, located between the two ilia (wings of the pelvis) and formed from vertebrae that fuse in adulthood..
Common synonyms include holy bone.
The opposite depends on the specific sense.
Use sacrum where its definition matches the intended context.
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