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The act or method of ascertaining the strength of vinegar, or the proportion of acetic acid contained in it. Ure.

A gaseous compound of carbon and hydrogen, in the proportion of two atoms of the former to two of the latter. It is a colorless gas, with a peculiar, unpleasant odor, and is produced for use as an illuminating gas in a number of ways, but chiefly by the action of water on calcium carbide. Its light is very brilliant. W…

Provisions. Same as Cates. [Obs.] Spenser.

, as crown and flint glass, with the curvatures so adjusted that the chromatic aberration produced by the one is corrected by other, and light emerges from the compound lens undecomposed. -- Achromatic prism. See Prism. -- Achromatic telescope, or microscope, one in which the chromatic aberration is corrected, usuall…

The act or process of achromatizing.

or violet colors. They are also characterized by the power of destroying the distinctive properties of alkalies or bases, combining with them to form salts, at the same time losing their own peculiar properties. They all contain hydrogen, united with a more negative element or radical, either alone, or more generally…

Producing acidity; converting into an acid. Dana.

The act or process of acidifying, or changing into an acid.

A simple or compound principle, whose presence is necessary to produce acidity, as oxygen, chlorine, bromine, iodine, etc.

The measurement of the strength of acids, especially by a chemical process based on the law of chemical combinations, or the fact that, to produce a complete reaction, a certain definite weight of reagent is required. -- Ac`id*i*met"ric*al, a.

That variety of either the Bessemer or the open-hearth process in which the converter or hearth is lined with acid, that is, highly siliceous, material. Opposed to basic process.

The process of coating the surface of a metal plate (as a stereotype plate) with steellike iron by means of voltaic electricity; steeling.

dmit the claims or authority of; to give recognition to. In all thy ways acknowledge Him. Prov. iii. 6. By my soul, I'll ne'er acknowledge thee. Shak.

al of one's own act, to give it legal validity; as, the acknowledgment of a deed before a proper officer. Also, the certificate of the officer attesting such declaration. Acknowledgment money, in some parts of England, a sum paid by copyhold tenants, on the death of their landlords, as an acknowledgment of their new lo…

itself horizontally, having no dip. The aclinic line is also termed the magnetic equator. Prof. August.

coustic vessels, brazen tubes or vessels, shaped like a bell, used in ancient theaters to propel the voices of the actors, so as to render them audible to a great distance.

Property acquired by purchase, gift, or otherwise than by inheritance. Bouvier.

The act or process of acquiring. The acquisition or loss of a province. Macaulay.

The quality of being acquisitive; propensity to acquire property; desire of possession.

which is evidence of a discharge; a receipt in full, which bars a further demand. You can produce acquittances For such a sum, from special officers. Shak.