Dictionary.net

• A branch of the abdominal aorta which supplies the kidneys, adrenal glands and ureters.

2010 - Medical Dictionary Database
By DataStellar Co., Ltd

• Are very large and short, and commonly two in number- one to each kidney. They arise from the sides of the abdominal aorta, forming with it a right angle. The left is commonly a little more anterior and elevated than the right. After a short course, they arrive at the fissure of the kidney, where they divide, before entering it, into three or four very considerable branches.

1846 - Medical lexicon: a dictionary of medical science
By Robley Dunglison