turmeric

/terr"meuhr ik/, n.
1. the aromatic rhizome of an Asian plant, Curcuma domestica (or C. longa), of the ginger family.
2. a powder prepared from it, used as a condiment, as in curry powder, or as a yellow dye, a medicine, etc.
3. the plant itself.
4. any of various similar substances or plants.
[1530-40; earlier tarmaret < ML terra merita merited earth, unexplained name for curcuma]

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Perennial herbaceous plant (Curcuma longa; family Zingiberaceae), native to southern India and Indonesia.

Its tuberous rhizomes have been used from antiquity as a condiment, as a textile dye, and medically as an aromatic stimulant. The rhizome has a pepperlike aroma and a somewhat bitter, warm taste. It colours and flavours prepared mustard and is used in curry powder, relishes, pickles, spiced butters, and numerous culinary dishes. Paper tinged with turmeric turns from yellow to reddish brown when an alkali is added to it, thus providing a test for alkalinity.

Turmeric (Curcuma longa).

W.H. Hodge

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plant
      (Curcuma longa), perennial herbaceous plant of the ginger family (Zingiberaceae), the tuberous rhizomes (rhizome), or underground stems, of which have been used from antiquity as a condiment, a textile dye, and medically as an aromatic stimulant. In biblical times it was used as a perfume as well as a spice (spice and herb). In the Middle Ages it was called Indian saffron because of its orange-yellow colour. The rhizome has a pepperlike aroma and a somewhat bitter, warm taste. It is the ingredient that colours and flavours prepared mustard and is used in curry powder, relishes, pickles, spiced butters for vegetables, in fish and egg dishes, and with poultry, rice, and pork. In parts of Asia turmeric water is applied as a cosmetic to lend a golden glow to the complexion.

      Native to southern India and Indonesia, turmeric is cultivated on the mainland and in the islands of the Indian Ocean. Production involves a boiling process, which is followed by exposure of the rhizomes to sunlight for five to seven days to dry. Then they are polished by hand rubbing or by rotation in a mounted drum. Dried rhizomes vary from about 2.5 to 7.5 cm (1 to 3 inches) in length. The spice is usually sold in ground form. Distillation yields 1.3 to 5.5 percent essential oil, the main components of which are turmerone and ar-turmerone. The colouring matter is curcumin.

      Paper tinged with a tincture of turmeric, on addition of alkali, turns from yellow to reddish brown, becoming violet on drying, thus providing a test for alkalinity.

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Universalium. 2010.

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