Chronic renal failure

Chronic kidney disease (CKD), also know as chronic renal disease, is a progressive loss of renal function over a period of months or years through five stages. Each stage is a progression through an abnormally low and progressively worse glomerular filtration rate, which is usually determined indirectly by the creatinine level in blood serum.
See more at Wikipedia.org...

Chronic renal failure Chronic kidney failure Nephrology A slow decline in renal function, which may be 2º to chronic HTN, DM, CHF, SLE, or [more]Chronic renal failure - Community and Resources

Noun
1. renal failure that can result from a variety of systemic disorders
(synonym) chronic kidney failure
(hypernym) renal failure, kidney failure