natural coloring matter

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• matter — matterful, adj. matterless, adj. /mat euhr/, n. 1. the substance or substances of which any physical object consists or is composed: the matter of which the earth is made. 2. physical or corporeal substance in general, whether solid, liquid, or… …   Universalium

• e|ti|o|la|tion — «EE tee uh LAY shuhn», noun. 1. a becoming pale or colorless through loss of natural coloring matter as a result of the exclusion of light or of disease. 2. the making of plants, especially certain market vegetables, white, crisp, and tender by… …   Useful english dictionary

• Depleted uranium — The DU penetrator of a 30 mm round[1] Depleted uranium (DU; also referred to in the past as Q metal, depletalloy, or D 38) is uranium with a lower content of the fissile isotope U 235 than natural uranium (natural uranium is about 99.27% uranium… …   Wikipedia

• dye — dyable, dyeable, adj. dyer, n. /duy/, n., v., dyed, dyeing. n. 1. a coloring material or matter. 2. a liquid containing coloring matter, for imparting a particular hue to cloth, paper, etc. 3. color or hue, esp. as produced by dyeing. 4. of the… …   Universalium

• Pigment — A substance that gives color to tissue. Pigments are responsible for the color of skin, eyes, and hair. * * * 1. Any coloring matter, as that of the red blood cells, hair, iris, etc., or the stains used in histologic or bacteriologic work, or… …   Medical dictionary

• Absinthe — is traditionally a distilled, highly alcoholic (45% 75% ABV) beverage. It is an anise flavored spirit derived from herbs, including the flowers and leaves of the herb Artemisia absinthium , also called wormwood. Absinthe has a characteristic… …   Wikipedia

• dye — A stain or coloring matter; a compound consisting of chromophore and auxochrome groups attached to one or more benzene rings, its color being due to the chromophore and its dyeing affinities to the auxochrome. Dyes are used for intravital… …   Medical dictionary

• paint — paintable, adj. paintless, adj. /paynt/, n. 1. a substance composed of solid coloring matter suspended in a liquid medium and applied as a protective or decorative coating to various surfaces, or to canvas or other materials in producing a work… …   Universalium

• Textile processing — is one of the important industries related with textile manufacturing operations. This industry has a long history that begins with Indigo dyeing a natural color, derived from a plant. Once the process of coloring textiles was considered as an… …   Wikipedia

• azolitmin — A purplish red coloring matter obtained from natural litmus or synthesized by oxidizing orcinol in the presence of ammonia, lime, and potash; used as a broad indicator of pH (red at 4.5, blue at 8.3). * * * azo·lit·min .az ō lit mən, .āz n a dark …   Medical dictionary

• Color photography — Color film redirects here. For the motion picture equivalent, see Color motion picture film. A circa 1850 Hillotype photograph of a colored engraving. Long believed to be a complete fraud, recent testing found that Levi Hill s process did… …   Wikipedia