tyrosinemia: autosomal recessive defect in tyrosine metabolism resulting in liver and kidney disturbances and mental retardation
illness: impairment of normal physiological function affecting part or all of an organism
superclass myriapoda: used in some classifications to encompass the millipedes (Diplopoda) and centipedes (Chilopoda); formerly a large taxon including also the Pauropoda and Symphyla; the term Myriapoda now usually used synonymously with Diplopoda and limited to the millipedes