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A blue coloring matter found in the pus from old sores, supposed to be formed through the agency of a species of bacterium (Bacillus pyocyaneus).C13H10N2O

A greenish yellow crystalline coloring matter found with pyocyanin in pus.

usually with part of the stile, of the Crocus sativus. Saffron is used in cookery, and in coloring confectionery, liquors, varnishes, etc., and was formerly much used in medicine.

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.

To make less glaring; to tone down; as, to soften the coloring of a picture.

A tool or implement for mottling a molded article with coloring matter Knoght.

A blue coloring matter found in some stentors. See Stentor, 2.

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

To color, as the flesh, by pricking in coloring matter, so as to form marks or figures which can not be washed out.

on from the pupa. In this state the insect is soft, and has not fully attained its mature coloring.

A slight coloring. Specifically: --

and composed of pure wool with a weft of different material. It is distinguishable by its coloring and patterns from similar carpets made in India and elsewhere. -- Turkey oak. (Bot.) See Cerris. -- Turkey red. (a) A brilliant red imparted by madder to cottons, calicoes, etc., the fiber of which has been prepared pre…

rope. It has large dark leaves, and a somber aspect. The juice of its berries is used for coloring wine. J. Smith (Dict. Econ. Plants).

Urinary hæmatin; -- applied to the normal coloring matter of the urine, on the supposition that it is formed either directly or indirectly (through bilirubin) from the hæmatin of the blood. See Urochrome, and Urobilin.

To cover or conceal with something that gives a fair appearance; to give a fair coloring to by words; to gloss over; to palliate; as, to varnish guilt. "Beauty doth varnish age." Shak. Close ambition, varnished o'er with zeal. Milton. Cato's voice was ne'er employed To clear the guilty and to varnish crimes. Addison.…

r from the mineral cinnabar or artificially. It has a fine red color, and is much used in coloring sealing wax, in printing, etc.

An adhesive disk of dried paste, made of flour, gelatin, isinglass, or the like, and coloring matter, -- used in sealing letters and other documents. Wafer cake, a sweet, thin cake. Shak. -- Wafer irons, or Wafer tongs (Cookery), a pincher-shaped contrivance, having flat plates, or blades, between which wafers are bak…

Coloring matter or dye extracted from this plant.

herbaceous cruciferous plant (Isatis tinctoria). It was formerly cultivated for the blue coloring matter derived from its leaves.

A yellow coloring matter found in yellow autumn leaves, and also produced artificially from chlorophyll; -- formerly called also phylloxanthin.