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Word of the Day Tuesday, June 9, 2026

sacrum

/sækɹəm/ noun · British & US
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What does sacrum mean?

noun

The sacrum is a triangular bone at the base of the spine, formed by the fusion of five sacral vertebrae. It is located between the ilium and the coccyx.

Example

"The doctor examined the patient's sacrum to diagnose the cause of the back pain."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for sacrum

Rhymes with sacrum

Etymologically related