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1. The dried and powdered root of Rubia tinctorum (family Rubiaceae); it contains several glycosides that produce the red dyes alizarin and purpurin on fermentation. When madder (or alizarin) is fed to young animals, the calcium in newly deposited bone salt, hydroxyapatite, is stained red.
2. Any dye obtained from plants of the madder family (Rubiaceae).
Synonym(s): Turkey red
[A.S. maedere]


Root of the plant Rubia tinctorum, a source of the red dye alizarin.

madder (maˑ·dr),

n Latin name:
Rubia tinctorum; part used: roots; uses: kidney stones, paralysis, menstrual problems, jaundice; precautions: pregnancy, lactation, children; possible hepatotoxicity. Also called
dyer's madder, garance, krapp, madder root, or
References in periodicals archive ?
We had a culinary treat in Fortune--the chef at the motel we stayed in produced a wonderful partridgeberry pie made from fresh picked berries (2002).
Cole and Nancy Underhill, also from Ontario, reasoned that regional foods, such as partridgeberry pie, jam and sauce, "reflect the history of the island, and its very practical, self-sufficient people.
Knudsen said, "People were looking to buy partridgeberry and bakeapple jam--we looked for a suitable product but couldn't find one" (Newfoundland 2002).
Along with some jugs of drinkable berries, Bill and I bought wild blueberry jam, partridgeberry jam, bakeapple jam and some berry flavored teas (2002).
Introduced to the province's wild berries by way of partridgeberry sorbet served at the Cabot Club (Fairmont Hotel), as well as Stonehouse Renaissance's caribou and blueberry stew, (25) the Funks were primed for The Dark Tickle Company's products and educational presentation.