Left from the breakdown of hemoglobin

• Can be a sign of disturbed iron metabolism
• A granular brown substance composed of ferric oxide

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 ...

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 ]

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 ...

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 ...