orcein

listen to the pronunciation of orcein
İngilizce - Türkçe
orsein
İngilizce - İngilizce
a dye, related to litmus, that is extracted from the lichen Rocella tinctoria; used as a microscopic stain and as a food colouring
A reddish brown amorphous dyestuff, &?;, obtained from orcin, and forming the essential coloring matter of cudbear and archil
It is closely related to litmus
{i} organic dye of the color brownish-red