| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
| archil |
(är´k l, –chl) (KEY) or orchil (ôr´–) (KEY) , blue, red, or purple dye extracted from several species of lichen, also called orchella weeds, found in various parts of the world. Commercial archil is either a powder (called cudbear), a pasty mass (called archil), or a drier paste (called persis). |
| The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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