sacral Definition

sacral¹
adj

1. Referring or relating to sacred rites.

Etymology: 19c: from Latin sacrum a sacred object.

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sacral²
adj

1. Relating to or in the region of the sacrum.

Etymology: 18c: from Latin sacralis of the sacrum.

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sacrum
noun

sacra
1. anatomy.
A large triangular bone composed of fused vertebrae, forming the keystone of the pelvic arch in humans.

Derivative: sacral

See separate entry.

Etymology: 18c: from Latin os sacrum holy bone, from its use in sacrifices.