A granular brown substance composed of ferric oxide

• Can be a sign of disturbed iron metabolism
• Left from the breakdown of hemoglobin

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
hemosiderin \hemosiderin\ n. (Med.) a granular yellowish-brown substance composed of protein and ferric oxide, resulting from the breakdown of hemoglobin; it has a higher iron content than ferritin, and its presence in body tissues or phagocytes can be ...

Wiktionary Word definitions in Wiktionary
alt. (context biochemistry English) An abnormal microscopic pigment, formed of granules of a complex of iron hydroxides, protein and polysaccharides, that forms in tissues of patients having an excess of iron n. (context biochemistry English) An abnormal ...

Wikipedia Word definitions in Wikipedia
thumb|Hemosiderin image of a kidney viewed under a microscope. The brown areas represent hemosiderin Hemosiderin or haemosiderin is an iron -storage complex. It is only found within cells (as opposed to circulating in blood) and appears to be a complex ...

WordNet Word definitions in WordNet
n. a granular brown substance composed of ferric oxide; left from the breakdown of hemoglobin; can be a sign of disturbed iron metabolism [syn: haemosiderin ]