alkaptonuria alkapton • alkaptonuric · · · Info · Definitions · Synonyms · Characters · · alkaptonuria · · Text Latin · · Script 12 · · Length Definitions · · · (noun) a rare recessive metabolic anomaly marked by ochronosis and the presence of alkapton in the urine. Synonyms: alcaptonuria. · · Noun Definition 1 Synonyms · · · alcaptonuria · · Synonym 1 Characters · · a latin small letter a U+0061 i latin small letter i U+0069 k latin small letter k U+006B l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075