1. [syn: alizarin, alizarine]
The Collaborative International Dictionary of English v.0.48:
Alizarin \A*liz"a*rin\, Alizarine \A*liz"a*rine\, n. [F.
alizarine, fr. alizari.] (Chem.)
A coloring principle, C14H6O2(OH)2, found in madder, and
now produced artificially as an an orange-red crystalline
compound from anthracene. It is used in making red pigments
(such as the Turkish reds), and in dyeing.
[1913 Webster WordNet 1.5]
WordNet (r) 3.0 (2006):
n 1: an orange-red crystalline compound used in making red
pigments and in dyeing [syn: alizarin, alizarine]