Medical Definition of lumbar vertebra
: any of the vertebrae situated between the thoracic vertebrae above and the sacrum below that in humans are five in number
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Cite this Entry
“Lumbar vertebra.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/lumbar%20vertebra. Accessed 23 May. 2022.
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