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Definition of sacrum

sacrum

/ˈseɪ.krəm/
sa · crum
Plural:sacra
•
Adjective:sacral
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sacrum Lexical Profile

sacrum Game Scores & Validity

• noun

1

A large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity, formed by the fusion of the five sacral vertebrae and wedged between the two hip bones.

Example

"The physical therapist recommended gentle stretching exercises to relieve tension around the lower lumbar spine and the sacrum."

• Rhymes for sacrum

• Nearby Words

sacrilege
sacrilegious
sacrococcyx
sacrum
sad
sadat
saddam

Word Origin & Etymology

Borrowed in the mid-18th century from Late Latin (os) sacrum, literally meaning 'sacred bone', a calque of Ancient Greek hieron osteon, possibly because the bone was offered in animal sacrifices or because it protected the reproductive organs.

Cite this Entry

Wordmom. (2026). Definition of Sacrum. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/sacrum
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