lumbar

adjective

lum·​bar ˈləm-bər  -ˌbär 

: of, relating to, or constituting the loins or the vertebrae between the thoracic vertebrae and sacrum

lumbar region

Examples of lumbar in a Sentence

This seat provides good lumbar support.

Recent Examples on the Web

The pressure points for a back sleeper are found in the lumbar areas along the lower back. — Deirdre Mundorf, Discover Magazine, 25 Oct. 2021

Do yourself a favor and add a seat cushion or some lumbar support to your car setup. — Karthika Gupta, Condé Nast Traveler, 24 Jan. 2022

Your room will seamlessly embrace boho style with this eclectic, lumbar pillow. — Jennifer Carmichael, Better Homes & Gardens, 26 Oct. 2022

There are certain conditions of the spine that may make someone more sensitive to lumbar extension. — Maggie O'Neill, Verywell Health, 24 June 2026

Word History

Etymology

New Latin lumbaris, from Latin lumbus loin — more at loin

First Known Use

circa 1656, in the meaning defined above

Phrases Containing lumbar

• lumbar puncture

Rhymes for lumbar

• adar
• afar
• ajar
• alar
• alvar
• bazaar
• bizarre
• boxcar
• boyar
• bulbar
• cachar
• cigar

Kids Definition

lumbar

adjective

lum·​bar ˈləm-bər 

-ˌbär

: of, relating to, or near the loins or the bony regions of the lower spinal column

the lumbar region

Medical Definition

lumbar

adjective

lum·​bar ˈləm-bər, -ˌbär 

1

: of, relating to, or constituting the loins or the vertebrae between the thoracic vertebrae and sacrum

the lumbar region

2

: of, relating to, or being the abdominal region lying on either side of the umbilical region and above the corresponding iliac region