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A colorless, crystalline substance extracted from oil of cloves; -- called also clove camphor.

A yellow, crystalline substance, resembling aurin, and obtained by the oxidation of pittacal; -- called also eupittonic acid. [Written also eupitton.]

rtaining to, derived from, or resembling, euxanthin. Euxanthic acid (Chem.), a yellow, crystalline, organic acid, extracted from euxanthin.

A nonnitrogenous, crystalline body, present in small quantity in human fæces.

Ligament; k Prosterior Aqueous Chamber between h and i; l Anterior Aqueous Chamber; m Crystalline Lens; n Vitreous Humor; o Retina; p Yellow spot; q Center of blind spot; r Artery of Retina in center of the Optic Nerve.

A stratum in crystalline rock, containing metallic sulphides. Raymond.

A name given to a group of minerals, closely related in crystalline form, and all silicates of alumina with either potash, soda, lime, or, in one case, baryta. They occur in crystals and crystalline masses, vitreous in luster, and breaking rather easily in two directions at right angles to each other, or nearly so. The…

Pertaining to, or derived from, a ferricyanide. Ferricyanic acid (Chem.), a brown crystalline substance, H6(CN)12Fe2, obtained from potassium ferricyanide, and regarded as the type of the ferricyanides; -- called also hydro-ferricyanic acid, hydrogen ferricyanide, etc.

some other base. Potassium ferricyanide (Chem.), red prussiate of potash; a dark, red, crystalline salt, K6(CN)12Fe2, consisting of the double cyanide of potassium and ferric iron. From it is derived the ferrous ferricyanate, Turnbull's blue.

ng to, derived from, or designating, a ferrocyanide. ferrocyanic acid (Chem.), a white crystalline substance, H4(CN)6Fe, of strong acid properties, obtained from potassium ferrocyanide, and regarded as the type of the ferrocyanides; -- called also hydro- ferrocyanic acid, hydrogen ferrocyanide. etc.…

her base. Potassium ferrocyanide (Chem.), yellow prussiate of potash; a tough, yellow, crystalline salt, K4(CN)6Fe, the starting point in the manufacture of almost all cyanogen compounds, and the basis of the ferric ferrocyanate, prussian blue. It is obtained by strongly heating together potash, scrap iron, and animal…

A white crystallized mineral resin from the Fichtelgebirge, Bavaria.

. -- Finger sponge (Zoöl.), a sponge having finger-shaped lobes, or branches. -- Finger stall, a cover or shield for a finger. -- Finger steel, a steel instrument for whetting a currier's knife. To burn one's fingers. See under Burn. -- To have a finger in, to be concerned in. [Colloq.] -- To have at one's fingers'…

A yellow crystalline substance extracted from fustet, and regarded as its essential coloring principle; -- called also fisetic acid.

A yellow, crystalline, organic dyestuff, C16H14N2, of artifical production. It is a strong base, and is a complex derivative of aniline and quinoline.

A yellow, crystalline, organic base, C13H12N2O, obtained artificially.

A yellow, crystalline substance, obtained from anthraquinone, and regarded as a hydroxyl derivative of it.

A white crystalline hydrocarbon C

A colorless, crystalline hydrocarbon, C13H10 having a beautiful violet fluorescence; whence its name. It occurs in the higher boiling products of coal tar, and is obtained artificially.

A yellowish red, crystalline substance, C20H12O5, produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin.…