Noun: orchil or-chil
- Any of various lecanoras that yield the dye archil
"orchil was once widely used to produce purple dyes for textiles";
- archil
- A purplish dye obtained from orchil lichens
"orchil was historically used to dye wool and other textiles";
- archil, cudbear [archaic]
Derived forms: orchils
Type of: dye, dyestuff, lecanora
Part of: genus Lecanora
Encyclopedia: Orchil