
1) Animal pigment 2) Bilirubin 3) Haematoidin
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1) Bilirubin 2) Haematoidin
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• (n.) A crystalline or amorphous pigment, free from iron, formed from hematin in old blood stains, and in old hemorrhages in the body. It resembles bilirubin. When present in the corpora lutea it is called haemolutein.
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http://thinkexist.com/dictionary/meaning/hematoidin/

(he-mә-toid´in) a hematogenous pigment apparently identical to bilirubin but formed in the tissues from hemoglobin, particularly under conditions of reduced oxygen tension.
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http://www.encyclo.co.uk/local/21001
Hem`a·toid'in noun (Physiol. Chem.) A crystalline or amorphous pigment, free from iron, formed from hematin in old blood stains, and in old hemorrhages in the body. It resembles bilirubin. When present in the corpora lutea it is called
hæmolutein .
Found on
http://www.encyclo.co.uk/webster/H/31

Type: Term Pronunciation: hē′mă-toy′din Definitions: 1. A pigment derived from hemoglobin that contains no iron but is closely related to or identical to bilirubin. Hematoidin is formed intracellularly, presumably within reticuloendothelial cells, but is often found extracellularly after 5-7 days in foci of previous hemorrhage...
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http://www.medilexicon.com/medicaldictionary.php?t=39796
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