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spirit of tin, or fuming liquor of Libavius. -- Stannic oxide, tin oxide, SnO2, produced artificially as a white amorphous powder, and occurring naturally in the mineral cassiterite. It is used in the manufacture of white enamels, and, under the name of putty powder, for polishing glass, etc.

A hydrocarbon, C14H12, produced artificially in large, fine crystals; -- called also diphenyl ethylene, toluylene, etc.

A house or room artificially warmed or heated; a forcing house, or hothouse; a drying room; -- formerly, designating an artificially warmed dwelling or room, a parlor, or a bathroom, but now restricted, in this sense, to heated houses or rooms used for horticultural purposes or in the processes of the arts. When most o…

A bed or layer artificially made; a course.

A white or yellowish crystalline substance, C6H4.(SO2.CO).NH, produced artificially by the oxidation of a sulphamic derivative of toluene. It is the sweetest substance known, having over two hundred times the sweetening power of sugar, and is known in commerce under the name of saccharine. It has acid properties and fo…

An alkaloidal ureide, C7H8N4O2, homologous with and resembling caffeine, produced artificially, and also extracted from cacao and chocolate (from Theobroma Cacao) as a bitter white crystalline substance; -- called also dimethyl xanthine.

A red or violet dyestuff having a greenish metallic luster. It is produced artificially, by the chemical dehydration of thionine, as a brown amorphous powder.

hydrocarbon, C14H10, related both to the acetylene and the aromatic series, and produced artificially as a white crystalline substance; -- called also diphenyl acetylene.

ribasic organic acid, C3H5.(CO2H)3 occurring naturally in unripe beet roots, and produced artificially from glycerin as a white crystalline substance.

, which is a probable ingredient both of crude petroleum and of kerosene, and is produced artificially as a light colorless liquid.

A name given to any one of a series of orange-red dyestuffs produced artificially from certain complex sulphonic acid derivatives of azo and diazo hydrocarbons of the aromatic series; -- so called because of the general resemblance to the shades of nasturtium (Tropæolum).

To convert into vapor, as by the application of heat, whether naturally or artificially. Vaporizing surface. (Steam Boilers) See Evaporating surface, under Evaporate, v. t.

That which resembles varnish, either naturally or artificially; a glossy appearance. The varnish of the holly and ivy. Macaulay.

red pigment consisting of mercuric sulphide, obtained either from the mineral cinnabar or artificially. It has a fine red color, and is much used in coloring sealing wax, in printing, etc.

A place artificially arranged for keeping or raising living animals, as a park, a pond, an aquarium, a warren, etc.

Air artificially put in motion by any force or action; as, the wind of a cannon ball; the wind of a bellows.

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