protoporphyriaWiktionary 原文英美构词拆解protoproto-前缀porphyriaporphyria词干proto-An early, primitive stage of development. · Original, older.词源说明From proto- + porphyria.释义名词noun1(dermatology, pathology) A form of porphyria characterized by excessive protoporphyrin in the erythrocytes, plasma and feces