Sacrum Definition

sākrəm, săkrəm
sacra, sacrums
noun
A thick, triangular bone situated near the lower end of the spinal column, where it joins both innominate bones to form the dorsal part of the pelvis: it is formed in humans of five fused vertebrae.
Webster's New World
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Other Word Forms of Sacrum

Noun

Singular:
sacrum
Plural:
sacra, sacrums

Origin of Sacrum

  • New Latin from Late Latin (os) sacrum sacred (bone), sacrum (translation of Greek hieron (osteon) sacred (bone)) (so called from the use of the sacrum and coccyx of sacrificed animals in divination) neuter of Latin sacer sacred, holy sacred

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin ōs sacrum (“holy bone"), translation of Ancient Greek ἱερόν (hieron) ὀστέον (hieron osteon). Called so either because supposedly sacrum was the part of an animal offered in sacrifice or because of the belief that the soul of the man resides there.

    From Wiktionary

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