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Definition of Lumbar
1. Adjective. Of or relating to or near the part of the back between the ribs and the hipbones. "Lumbar vertebrae"
Definition of Lumbar
1. a. Of, pertaining to, or near, the loins; as, the lumbar arteries.
Definition of Lumbar
1. an anatomical part situated near the loins [n -S]
Medical Definition of Lumbar
1.