The term "renal" refers to the kidney. For example, renal failure means kidney failure.
Dorland's Online Medical Dictionary. www.dorlands.com/def.jsp?id=100092045. Accessed Sept. 9, 2015.
Update Date 8/14/2015
Updated by: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.