lumbar
UK: ˈlʌm.bə | US: ˈlʌm.bɑːr
adj. relating to the lower part of the back, specifically the vertebrae between the ribs and the pelvis.
The word "lumbar" traces back to the Latin lumbus, meaning "loin" or "lower back." The suffix -ar (from Latin -aris) is used to form adjectives, giving "lumbar" its modern meaning of "pertaining to the loins." The term has retained its anatomical focus, consistently referring to the lower spinal region in medical and everyday contexts.
She experienced sharp pain in her lumbar region after lifting heavy boxes.
The doctor recommended exercises to strengthen the lumbar muscles.
The lumbar spine supports much of the body's weight.
A lumbar puncture is sometimes used to diagnose neurological conditions.
Poor posture can lead to chronic lumbar strain.