'Lumbar region' definitions:

Definition of 'Lumbar region'

From: GCIDE

Lumbar \Lum"bar\, Lumbal \Lum"bal\, a. [L. lumbus loin. See Loin.] (Anat.) Of, pertaining to, or near, the loins; as, the lumbar arteries. [1913 Webster]
Lumbar region (Anat.), the region of the loin; specifically, a region between the hypochondriac and iliac regions, and outside of the umbilical region. [1913 Webster]