ALL meanings of orchil
or·chil
O o - noun orchil a violet coloring matter obtained from certain lichens, chiefly species of Roccella. 1
- noun orchil any lichen yielding this dye. 1
- noun orchil A red or violet dye obtained from certain lichens, used as a source of litmus, orcinol, and other pigments. 1
- noun orchil any of various lichens, esp any of the genera Roccella, Dendrographa, and Lecanora 0
- noun orchil a purplish dye obtained by treating these lichens with aqueous ammonia: contains orcinol, orcein, and litmus 0
- noun orchil any of a number of lichens (genera Roccella, Dendrographa, and Lecanora) yielding purple dyes 0
- noun orchil any of these, including litmus 0