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ound or pear-shaped, with round or flat bottom, and usually very thin to allow of heating solutions. -- Pocket flask, a kind of pocket dram bottle, often covered with metal or leather to protect it from breaking.

faces of broken flints set in the mortar, with quions of masonry. -- Liquor of flints, a solution of silica, or flints, in potash. -- To skin a flint, to be capable of, or guilty of, any expedient or any meanness for making money. [Colloq.]

luorine and boron. Fluoridic acid (Chem.), a double fluoride, consisting essentially of a solution of boron fluoride, in hydrofluoric acid. It has strong acid properties, and is the type of the borofluorides. Called also borofluoric acid.

orcin; -- 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.

luorine. Fluosilicic acid, a double fluoride of hydrogen and silicon, H2F6Si, obtained in solution in water as a sour fuming liquid, and regarded as the type of the fluosilicates; -- called also silicofluoric acid, and hydrofluosilicic acid.

A kind of soft sweetmeat made by boiling solutions to the point of crystallization, usually molded; as, cherry fondant.

An aqueous solution of formaldehyde, used as a preservative in museums and as a disinfectant.

fied by pride. Gibbon. Pride came to the aid of fancy, and both combined to fortify his resolution. Sir W. Scott.

), a process of gradual and approximate purification and separation, by means of repeated solution and crystallization therefrom. -- Fractional currency, small coin, or paper notes, in circulation, of less value than the monetary unit. -- Fractional distillation (Chem.), a process of distillation so conducted that a…

Liable to fall from virtue or be led into sin; not strong against temptation; weak in resolution; also, unchaste; -- often applied to fallen women. Man is frail, and prone to evil. Jer. Taylor.

ity of being frail, physically, mentally, or morally, frailness; infirmity; weakness of resolution; liableness to be deceived or seduced. God knows our frailty, [and] pities our weakness. Locke.

h esculin in the bark of the horse-chestnut. It shows a delicate fluorescence in alkaline solutions; -- called also paviin.

riar's balsam (Med.), a stimulating application for wounds and ulcers, being an alcoholic solution of benzoin, styrax, tolu balsam, and aloes; compound tincture of benzoin. Brande & C. -- Friar's cap (Bot.), the monkshood. -- Friar's cowl (Bot.), an arumlike plant (Arisarum vulgare) with a spathe or involucral leaf r…

ording to the rules or principles of, geometry; determined by geometry; as, a geometrical solution of a problem.

l magnitudes. -- Descriptive geometry, that part of geometry which treats of the graphic solution of all problems involving three dimensions. -- Elementary geometry, that part of geometry which treats of the simple properties of straight lines, circles, plane surface, solids bounded by plane surfaces, the sphere, the…

An albuminous body, insoluble in water, but soluble in dilute solutions of salt. It is present in the red blood corpuscles united with hæmatin to form hæmoglobin. It is also found in the crystalline lens of the eye, and in blood serum, and is sometimes called crystallin. In the plural the word is applied to a group of…

A dilute solution of nitroglycerin used as a neurotic.

-- Liquid glue, a fluid preparation of glue and acetic acid oralcohol. -- Marine glue, a solution of caoutchouc in naphtha, with shellac, used in shipbuilding.

An aqueous solution of the subacetate of lead, used as a lotion in cases of inflammation. Goulard's cerate is a cerate containing this extract.

To bring to a certain strength or grade of concentration; as, to gradate a saline solution.