MADDER

madder. Madder, n. a plant much used in dying

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Mad″der (măd″dẽr), n. [[OE. mader, AS. mædere; akin to Icel. maðra.]] (Bot.) A plant of the genus Rubia (R. tinctorum). The root is much used in dyeing red, and formerly was used in medicine. It is cultivated in France and Holland. See Rubiaceous. ☞ Madder is sometimes used in forming pigments, as lakes, etc., which receive their names from their colors; as. madder yellow. Field madder, an annual European weed (Sherardia arvensis) resembling madder. — Indian madder , the East Indian Rubia cordifolia, used in the East for dyeing; — called also munjeet. — Wild madder, Rubia peregrina of Europe; also the Galium Mollugo, a kind of bedstraw.