protoporphyria
/ˌprəʊtə(ʊ)pɔːˈfɪrɪə/Medicine
noun
A disorder of porphyrin metabolism in which there is excessive accumulation of protoporphyrin in the body; specifically (more fully erythropoietic protoporphyria) an inherited (autosomal dominant) disorder in which reduced activity of the mitochondrial enzyme ferrochelatase causes accumulation of protoporphyrin IX in erythrocytes, hepatocytes, and serum, leading to photosensitivity of the skin and, often, liver disease.
Origin
1950s. From proto- + porphyria, after protoporphyrin.
- color box
- color burst
- color cake
- color card
- color cast
- color cell
- color change
- color changing
- color-changing
- color charge
- color-charged
- color chart
- color chest
- color chord
- color circle
- color-coated
- color commentary
- color commentator
- color-conscious
- color consciousness
- color constancy
- color contrast
- color-coordinate
- color-coordinated
- color-coordinating