haem

Noun
  1. A complex red organic pigment containing iron and other atoms to which oxygen binds (synset 115049564)
    is a type of: pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
    substance meronym:
    • haemoglobin, hb, hemoglobin - a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues
    • myoglobin - a hemoprotein that receives oxygen from hemoglobin and stores it in the tissues until needed
    • cytochrome - (biochemistry) a class of hemoprotein whose principal biological function is electron transfer (especially in cellular respiration)
    same as: haemitin, hematin, heme, protoheme

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