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tants. Saxon blue (Dyeing), a deep blue liquid used in dyeing, and obtained by dissolving indigo in concentrated sulphuric acid. Brande & C. -- Saxon green (Dyeing), a green color produced by dyeing with yellow upon a ground of Saxon blue.

ing a slender joined pod, like a scorpion's tail. The leaves are said to yield a dye like indigo, and to be used sometimes to adulterate senna. -- Scorpion shell (Zoöl.), any shell of the genus Pteroceras. See Pteroceras. -- Scorpion spiders. (Zoöl.), any one of the Pedipalpi. -- Scorpion's tail (Bot.), any plant of…

An indigo-blue variety of quartz.

stines as a product of the putrefaction of albuminous matter. It is also found in reduced indigo. Chemically it is methyl indol, C9H9N.

received by the imagination; an image. [R.] "The species of the letters illuminated with indigo and violet." Sir I. Newton. Wit, . . . the faculty of imagination in the writer, which searches over all the memory for the species or ideas of those things which it designs to represent. Dryden.

In a successive manner. The whiteness, at length, changed successively into blue, indigo, and violet. Sir I. Newton.

every respect with the natural articles when such occur; thus, artificial alcohol, urea, indigo blue, alizarin, etc., are made by synthesis.

Chaucer. Thumb band, a twist of anything as thick as the thumb. Mortimer. -- Thumb blue, indigo in the form of small balls or lumps, used by washerwomen to blue linen, and the like. -- Thumb latch, a door latch having a lever formed to be pressed by the thumb. -- Thumb mark. (a) The mark left by the impression of a…

by the wind, as a light, rolling mass, over the fields and prairies; as witch grass, wild indigo, Amarantus albus, etc.

A body identical with indigo blue, occasionally found in the urine in degeneration of the kidneys. It is readily formed by oxidation or decomposition of indican.

Indigo red, a product of the decomposition, or oxidation, of indican. It is sometimes found in the sediment of pathological urines. It is soluble in ether or alcohol, giving the solution a beautiful red color. Also called indigrubin.

A dyestuff of the induline group, made from aniline, and used as a substitute for indigo in dyeing wool and silk a violet-blue or a gray-blue color.

ing of the powdered and fermented leaves of the Isatis tinctoria. It is now superseded by indigo, but is somewhat used with indigo as a ferment in dyeing. Their bodies . . . painted with woad in sundry figures. Milton. Wild woad (Bot.), the weld (Reseda luteola). See Weld. -- Woad mill, a mill grinding and preparing w…

yed wood, as the beech, oak, birch, etc., and extracted as an amorphous powder resembling indigo.

A yellow pigment. Cadmium yellow, Chrome yellow, Indigo yellow, King's yellow, etc. See under Cadmium, Chrome, etc. -- Naples yellow, a yellow amorphous pigment, used in oil, porcelain, and enamel painting, consisting of a basic lead metantimonate, obtained by fusing together tartar emetic lead nitrate, and common sal…