卟啉 Traditional form: 卟啉 Pinyin (reading): bǔlín Definitions: porphyrin (organic chemical essential to hemoglobin and chlorophyll) (loanword) Characters: 卟 - a chemical compound; divination; to consider 啉 - stupid; slow Traditional characters: 卟 - a chemical compound; divination; to consider 啉 - stupid; slow