haematoxylin

US hematoxylin

noun

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
a variant spelling of haematoxylon

Word Origin for haematoxylin

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 of haematoxylin

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