renal failure renal disorder • renal insufficiency · · · Info · Definitions · Synonyms · Characters · · renal failure · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) inability of the kidneys to excrete wastes and to help maintain the electrolyte balance. Synonyms: renal failure, kidney failure. · · Noun Definition 1 Synonyms · · · kidney failure · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075