lumbosacral

American

[luhm-boh-sey-kruhl, ‑-sak-ruhl] / ˌlʌm boʊˈseɪ krəl, ‑ˈsæk rəl /

Also sacrolumbar

adjective

Anatomy.

of, relating to, or involving the lumbar and sacral regions or parts of the body.

First recorded in 1830–40; lumbo- + sacral ²

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023