- Inflammation of the kidney. It is a focal or diffuse proliferative or destructive process which may involve the glomerulus, tubule, or interstitial renal tissue.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- Acute or chronic inflammation of the kidney affecting the structure (as of the glomerulus or parenchyma) and caused by infection, a degenerative process, or vascular disease.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
See also Understanding Medical Terminology.