noun
: any of a large class of dyes (as mordant, acid, acetate, and vat dyes) derived from anthraquinone and noted for their fastness — see dye table I
noun
: any of a large class of dyes (as mordant, acid, acetate, and vat dyes) derived from anthraquinone and noted for their fastness — see dye table I
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012