acute renal failure acute pyelonephritis • acute schizophrenic episode · · · Info · Definitions · Synonyms · Characters · · acute renal failure · · Text Common · · Latin · · Scripts 19 · · Length 6 · · Syllables Definitions · · · (noun) renal failure associated with burns or other trauma or with acute infection or obstruction of the urinary tract. Synonyms: acute renal failure, acute kidney failure. · · Noun Definition 1 Synonyms · · · acute kidney failure · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 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 t latin small letter t U+0074 u latin small letter u U+0075