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haematoxylin Line breaks: haema|toxy¦lin
Pronunciation: /ˌhiːməˈtɒksɪlɪn/
(US hematoxylin)

Definition of haematoxylin in English:


[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
Example sentences
  • 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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