Renal failure and Renal disorder

Renal failure noun - Inability of the kidneys to excrete wastes and to help maintain the electrolyte balance.

Renal disorder and renal failure are semantically related. In some cases you can use "Renal disorder" instead a noun phrase "Renal failure".

Renal disorder noun - A disease affecting the kidneys.

Renal failure and renal disorder are semantically related. Sometimes you can replace phrase "Renal failure" with "Renal disorder", this phrases are similar.