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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 ?
Our Cebu plant is now also foreign-owned by Gardenia International Ltd.
A ribbon-cutting celebration was held at OUC's Gardenia Campus near John Young Boulevard in Orlando at the end of October.
Gardenia Club, senalan, fue pensada en sus origenes como un performance.
Syria's Rotana Gardenia is a five-star hotel with a total built-up area of 84,000mA, operated by the Rotana Group and situated in the North-Western section of Homs.
I had to take a look for myself and went to visit Vaseloff's gardenia.
The single sniff of a gardenia shoots Dillard right back to her past.
In the recent research, the company confirmed that gardenia fruit extract promotes the generation of glutathione, which works on dopaquinone to promote the production of phaeomelanin, a type of melanin.
Fragrances such as vanilla, mint, chocolate, gardenia, rose, bubble gum and others are said to add value to finished rubber goods.
Use a single note body wash or lotion, like gardenia or tangerine, then lightly spray on a similar scent for a custom blend.
Perhaps best known as a corsage flower for a prom, wedding, or other special occasion, a gardenia also makes a great gift as a potted plant.
Kirstie Houghton and Alison Campbell opened Gardenia Beauty, in Gardenia Drive, Allesley village on September 8 last year, and since then the business has gone from strength to strength.
Desert Rose: Jennifer Lopez looks fresh as a daisy, or should that be a gardenia, or a camellia?