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lumbar

American

[luhm-ber, -bahr] / ˈlʌm bər, -bɑr /

adjective

of or relating to the loin or loins.

noun

a lumbar vertebra, artery, or the like.

lumbar British

/ ˈlʌmbə /

adjective

of, near, or relating to the part of the body between the lowest ribs and the hipbones

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lumbar Scientific

/ lŭm′bər /

Located at or near the part of the back lying between the lowest ribs and the hips.

Other Word Forms

Etymology

Origin of lumbar

From the New Latin word lumbāris, dating back to 1650–60. See lumb-, -ar ¹

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

lumbar

Gao has chronic lumbar spine disease and arthritis, and his health has deteriorated in custody, his brother said.

From The Wall Street Journal ● Aug. 26, 2026

I have to do more blood work, or lumbar punctures, to rule out meningitis.

From Los Angeles Times ● Jul. 28, 2026

Participants received doses of up to 70mg of zorevunersen through a lumbar puncture.

From Science Daily ● Mar. 4, 2026

But first, Atlantis Hospital referred the toddler to Euracare for pre-flight investigations, including an MRI and a spinal tap, or lumbar puncture.

From BBC ● Feb. 26, 2026

She has posture that suggests lower lumbar pain.

From "Counting by 7s" by Holly Goldberg Sloan

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