thionine
Thi"on*ine, n. Etym: [Gr. (Chem.) Defn: An artificial red or violet dyestuff consisting of a complex sulphur derivative of certain aromatic diamines, and obtained as a dark crystalline powder; -- called also phenylene violet.
Thi"on*ine, n. Etym: [Gr. (Chem.) Defn: An artificial red or violet dyestuff consisting of a complex sulphur derivative of certain aromatic diamines, and obtained as a dark crystalline powder; -- called also phenylene violet.