01 n. A powder of a violet red color, difficult to moisten with water, used for making violet or purple dye. It is prepared from certain species …
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1.
A powder of a violet red color, difficult to moisten with water, used for making violet or purple dye. It is prepared from certain species of lichen, especially Lecanora tartarea.
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2.
A lichen (Lecanora tartarea), from which the powder is obtained.(Bot.)