Lūm'bar, a.

a. [Lat. lumbus, loin; Sp. lumbar, lombar, It. lombare, lombale, Fr. lumbaire.] (Anat.) Pertaining to, or near, the loins; as, the lumbar vertebræ.

Lumbar region, the posterior portion of the body, between the false ribs and the upper edge of the haunch-bone.