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Related to haem: Heam
n. Chiefly British
Variant of heme.
(Biochemistry) biochem a complex red organic pigment containing ferrous iron, present in haemoglobin
[C20: shortened from haematin]
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|Noun||1.||haem - a complex red organic pigment containing iron and other atoms to which oxygen binds|
pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
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; "fish have simpler hemoglobin than mammals"
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)