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Definition of lumbar

lumbar

/ˈlʌm.bɚ/
lum · bar
Plural:lumbars
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lumbar Lexical Profile

lumbar Game Scores & Validity

• adjective

1

Relating to or situated in the lower part of the back, between the lowest ribs and the pelvis.

Example

"The office chair features an adjustable cushion designed to provide better lumbar support during long workdays."

• noun

1

A vertebra, artery, nerve, or muscle located in the lower region of the back between the thorax and the pelvis.

Example

"The physical therapist explained how gentle stretching exercises help relieve pressure on the lumbars."

Word Nuance & Usage

Do not confuse the anatomical adjective 'lumbar' (relating to the lower back) with the noun 'lumber' (timber or heavy wood).

• Rhymes for lumbar

• Nearby Words

lulonga
lulu
lulua
lumbar
lumber
lumbering
lumberjack

Word Origin & Etymology

Borrowed in the mid-17th century from Medieval Latin lumbaris, derived from Latin lumbus, meaning 'loin'.

Cite this Entry

Wordmom. (2026). Definition of Lumbar. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/lumbar
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