noun[mass noun] Biochemistry
A bluish-black compound derived from haemoglobin by removal of the protein part and oxidation of the iron atom.
- She received infusions of glucose and hematin, which gave her symptomatic relief.
- These tests detect haematin from partially digested blood in the stool.
- Our current impression is that haematin does curtail the clinical attack, and we frequently employ it.
Mid 19th century: from Greek haima, haimat- 'blood' + -in1.
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