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British Dictionary definitions for haematoxylin

haematoxylin

US hematoxylin

noun
  1. a colourless or yellowish crystalline compound that turns red on exposure to light: obtained from logwood and used in dyes and as a biological stain. Formula: C 16 H 14 O 6 .3H 2 O
  2. a variant spelling of haematoxylon
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Word Origin

C19: from New Latin Haematoxylon genus name of logwood, from haemato- + Greek xulon wood + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for haematoxylin

Historical Examples

  • This reaction of haematoxylin is exceedingly rapid and delicate, rendering that body a laboratory test for alkalis.

    Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 8

    Various

  • By the action of hydrogen and sulphurous acid, haematein is easily reduced to haematoxylin.