noun[mass noun] Chemistry
A colourless compound present in logwood, which is easily converted into blue, red, or purple dyes and is used as a biological stain.
- A phenol; chemical formula: C16H14O6
- Inactive DNA is readily stained with hematoxylin, toluidine blue, and other similar basic dyes.
- Tissues are stained in aqueous hematoxylin after mordanting in iron ammonium sulfate (iron alum).
- Eight randomly selected sites from each inflation-fixed right lung were embedded in paraffin, and sections were cut for hematoxylin and eosin staining.
Mid 19th century: from modern Latin Haematoxylum (genus name), from haemato- 'of blood' + Greek xulon 'wood'.
Definition of haematoxylin in:
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