1. 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; [syn: lumbar artery, arteria lumbalis]
WordNet (r) 3.0 (2006):
lumbar artery
n 1: 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 [syn: lumbar artery,
arteria lumbalis]