Haematoxylin \H[ae]m`a*tox"y*lin\ (-t[o^]ks"[i^]*l[i^]n), n.
[See H[ae]matoxylon.] (Chem.)
The coloring principle of logwood. It is obtained as a yellow
crystalline substance, C16H14O6, with a sweetish taste.
Formerly called also hematin.
[1913 Webster]