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en compounds, and the basis of the ferric ferrocyanate, prussian blue. It is obtained by strongly heating together potash, scrap iron, and animal matter containing nitrogen, as horn, leather, blood, etc., in iron pots.

A strong, offensive smell; stench; fetidness. Arbuthnot.

Excessive excitement of the passions in consequence of strong emotion; a condition of great excitement; as, this quarrel has set my blood in a fever. An envious fever Of pale and bloodless emulation. Shak. After life's fitful fever he sleeps well. Shak. Brain fever, Continued fever, etc. See under Brain, Continued, etc…

Having the nature of a trust; fiduciary; as, fiducial power. Spelman. Fiducial edge (Astron. & Surv.), the straight edge of the alidade or ruler along which a straight line is to be drawn. -- Fiducial line or point (Math. & Physics.), a line or point of reference, as for setting a graduated circle or scale used for me…

One who, or that which, finds; specifically (Astron.), a small telescope of low power and large field of view, attached to a larger telescope, for the purpose of finding an object more readily.

, etc., the flames of which are colored by various metallic salts, as those of antimony, strontium, barium, etc. -- Fire alarm (a) A signal given on the breaking out of a fire. (b) An apparatus for giving such an alarm. -- Fire annihilator, a machine, device, or preparation to be kept at hand for extinguishing fire b…

pose; fixed; steady; constant; stable; unshaken; not easily changed in feelings or will; strong; as, a firm believer; a firm friend; a firm adherent. Under spread ensigns, moving nigh, in slow But firm battalion. Milton. By one man's firm obediency fully tried. Milton.

acid or carbon dioxide; -- so called by Dr. Black because it can be absorbed or fixed by strong bases. See Carbonic acid, under Carbonic. -- Fixed alkali (Old Chem.), a non-volatile base, as soda, or potash, in distinction from the volatile alkali ammonia. -- Fixed ammunition (Mil.), a projectile and powder inclosed…

variety of water-tube boiler, used chiefly in steam automobiles, consisting of a nest of strong tubes with very little water space, kept nearly red hot so that the water as it trickles drop by drop into the tubes is immediately flashed into steam and superheated.

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, vegetable dyestuff, resembling quercitron.

A small beetle of the family Halticidæ, of many species. They have strong posterior legs and leap like fleas. The turnip flea- beetle (Phyllotreta vittata) and that of the grapevine (Graptodera chalybea) are common injurious species.

and quick in going from place to place; nimble. In mail their horses clad, yet fleet and strong. Milton.

The small distortion of an astronomical instrument caused by the weight of its parts; the amount to be added or substracted from the observed readings of the instrument to correct them for this distortion. The flexure of a curve (Math.), the bending of a curve towards or from a straight line.

de, 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.

A non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and silicon especially, that it can neither be prepar…

Doting affection; tender liking; strong appetite, propensity, or relish; as, he had a fondness for truffles. My heart had still some foolish fondness for thee. Addison.

The practice of folly; the behavior of a fool; absurdity. Folly in fools bears not so strong a note, As foolery in the wise, when wit doth dote. Shak.

Sweet smells are most forcible in dry substances, when broken. Bacon. But I have reasons strong and forcible. Shak. That punishment which hath been sometimes forcible to bridle sin. Hooker. He is at once elegant and sublime, forcible and ornamented. Lowth (Transl. )

To plan beforehand; to scheme; to project. He shall forecast his devices against the strongholds. Dan. xi. 24.