luluabourg
- n a city in southwestern Congo; former name (until 1966) was Luluabourg
lumbago
- n backache affecting the lumbar region or lower back; can be caused by muscle strain or arthritis or vascular insufficiency or a ruptured intervertebral disc
lumbar artery
- n one of four or five pairs of arteries that originate in the abdominal aorta and supply the lumbar vertebrae and the back muscles and abdominal wall
lumbar nerve
- n any of five pairs of spinal nerves emerging from the lumbar section of the spinal cord