porphyria(n = noun.state) - a genetic abnormality of metabolism causing abdominal pains and mental confusion;
is a kind of congenital disease, genetic abnormality, genetic defect, genetic disease, genetic disorder, hereditary condition, hereditary disease, inherited disease, inherited disorder

porphyria, n. any of a group of genetic disorders associated with abnormal metabolism of various pigments.

Etymology:
mod.L f. porphyrin purple substance excreted by porphyria patients f. Gk porphura purple