Definition of "fuchsin" []

• A dark green synthetic dyestuff, C20H19N3HCl, used to make a purple-red dye employed in coloring textiles and leather and as a bacterial stain. Also called magenta. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Stain in hot carbol-fuchsin (as for tubercle bacilli) for five to ten minutes."
• "Flood the film with carbolic fuchsin, warm until steam begins to rise."
• "Pour Ziehl's carbolic fuchsin on the film, warm as in previous methods, and allow it to act for ten minutes."