Noun
a complex red organic pigment containing iron and other atoms to which oxygen binds
Source: WordNetThe theory has been rebuffed medically as suggestions that porphyria sufferers crave the haem in human blood, or that the consumption of blood might ease the symptoms of porphyria, are based on a misunderstanding of the disease. Source: Internet
The plastid is responsible for haem biosynthesis, which requires plastid encoded tRNA-Glu (from the gene trnE) as a precursor molecule. Source: Internet