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A name applied to the amorphous or crystalline mass obtained from bile by the action of alcohol and ether. It is composed of a mixture of the sodium salts of the bile acids.

g iron and magnesia, generally of a black or dark green color; -- a common constituent of crystalline rocks. See Mica.

A white, crystalline, nitrogenous substance, C2O2N3H5, formed by heating urea. It is intermediate between urea and cyanuric acid.

A white or gray crystalline salt, with a slight alkaline taste, used as a flux, in soldering metals, making enamels, fixing colors on porcelain, and as a soap. It occurs native in certain mineral springs, and is made from the boric acid of hot springs in Tuscany. It was originally obtained from a lake in Thibet, and wa…

Of, pertaining to, or containing, boron. Boric acid, a white crystalline substance B(OH)3, easily obtained from its salts, and occurring in solution in the hot lagoons of Tuscany.

A substance, C16H14O5, extracted from brazilwood as a yellow crystalline powder which is white when pure. It is colored intensely red by alkalies on exposure to the air, being oxidized to bra*sil"e*in, C16H12O5, to which brazilwood owes its dyeing properties.

ance contained in both Brazil wood and Sapan wood, from which it is extracted as a yellow crystalline substance which is white when pure. It is colored intensely red by alkalies. [Written also brezilin.]

A colorless or white crystalline compound, (CH2)6N4C2H5Br, used as a sedative in epilepsy.

A crystalline substance (chemically, tribromophenol, C6H2Br3OH), used as an antiseptic and disinfectant.

A white or gray crystalline mineral consisting of the acid phosphate of calcium.

ad a large cavity, containing an oily fluid, which, after death, concretes into a whitish crystalline substance called spermaceti. See Sperm whale.

Of, pertaining to, or derived from, cacodyl. Cacodylic acid, a white, crystalline, deliquescent substance, (CH3)2AsO.OH, obtained by the oxidation of cacodyl, and having the properties of an exceedingly stable acid; -- also called alkargen.

or obtained from, coffee. Caffeic acid, an acid obtained from coffee tannin, as a yellow crystalline substance, C9H8O4.

A bitter principle extracted as a white crystalline substance from the calumba root. [Written also colombin, and columbin]

es in butter, cocoanut oil, etc., united with glycerin; they are colorless oils, or white crystalline solids, of an unpleasant odor like that of goats or sweat.

A colorless crystalline substance extracted from the Capsicum annuum, and giving off vapors of intense acridity.

Inflammation of a capsule, as that of the crystalline lens.

The incision of a capsule, esp. of that of the crystalline lens, as in a cataract operation.

A beautiful crystalline compound, SiC, consisting of carbon and silicon in combination; carbon silicide. It is made by heating carbon and sand together in an electric furnace. The commercial article is dark-colored and iridescent. It is harder than emery, and is used as an abrasive.

A white crystalline substance, C9H6N.OH, of acid properties derived from one of the amido cinnamic acids.