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The red pigment contained in the inner segments of the cones of the retina in animals. See Chromophane. W. KÜhne.

Having a pink color like that of the rose, or like the pigment called rose pink. See Rose pink, under Rose.

A russet color; a pigment of a russet color.

any large fungus of the genus Polyporus. See Polyporus. -- Sap green, a dull light green pigment prepared from the juice of the ripe berries of the Rhamnus catharticus, or buckthorn. It is used especially by water-color artists. -- Sap rot, the dry rot. See under Dry. -- Sap sucker (Zoöl.), any one of several specie…

To ornament, as shells, ivory, etc., by engraving, and (usually) rubbing pigments into the incised lines. [Sailor's cant. U.S.]

A compound of the resinous materials, pigments, etc., used as a material for seals, as for letters, documents, etc.

A pigment prepared from the ink, or black secretion, of the sepia, or cuttlefish. Treated with caustic potash, it has a rich brown color; and this mixed with a red forms Roman sepia. Cf. India ink, under India. Sepia drawing or picture, a drawing in monochrome, made in sepia alone, or in sepia with other brown pigments…

Clay that is colored red or brown by the oxides of iron or manganese, and used as a pigment. It is used either in the raw state or burnt. Burnt sienna, sienna made of a much redder color by the action of fire. -- Raw sienna, sienna in its natural state, of a transparent yellowish brown color.

A red pigment made from sinopite.

A deep blue pigment or coloring material used in various arts. It is a vitreous substance made of cobalt, potash, and calcined quartz fused, and reduced to a powder.

nish daggers. -- Spanish bean (Bot.) See the Note under Bean. -- Spanish black, a black pigment obtained by charring cork. Ure. -- Spanish broom (Bot.), a leguminous shrub (Spartium junceum) having many green flexible rushlike twigs. -- Spanish brown, a species of earth used in painting, having a dark reddish brown…

sts in beauty stain. Spenser. Stained glass, glass colored or stained by certain metallic pigments fused into its substance, -- often used for making ornament windows.

A coloring matter found in the fæces, a product of the alteration of the bile pigments in the intestinal canal, -- identical with hydrobilirubin.

An area in the pigmented layer of the choroid coat of the eye in many animals, which has an iridescent or metallic luster and helps to make the eye visible in the dark. Sometimes applied to the whole layer of pigmented epithelium of the choroid.

An indelible mark or figure made by puncturing the skin and introducing some pigment into the punctures; -- a mode of ornamentation practiced by various barbarous races, both in ancient and modern times, and also by some among civilized nations, especially by sailors.

An olive-green earth used as a pigment. See Glauconite.

A red or crimson pigment obtained from certain feathers of several species of turacou; whence the name. It contains nearly six per cent of copper.

f the genus Turacus, native of Africa. They are remarkable for the peculiar green and red pigments found in their feathers. [Written also touraco, and touracou.]

A green pigment found in the feathers of the turacou. See Turacin.

A blue pigment formerly obtained by powdering lapis lazuli, but now produced in large quantities by fusing together silica, alumina, soda, and sulphur, thus forming a glass, colored blue by the sodium polysulphides made in the fusion. Also used adjectively. Green ultramarine, a green pigment obtained as a first product…