- inborn error of metabolism - any of a number of diseases in which an inherited defect (usually a missing or inadequate enzyme) results in an abnormality of metabolism
--1 is a kind of metabolic disorder; genetic disease, genetic disorder, genetic abnormality, genetic defect, congenital disease, inherited disease, inherited disorder, hereditary disease, hereditary condition
--1 has particulars:galactosemia; lysinemia; Niemann-Pick disease; phenylketonuria, PKU