Search the Dictionary

A substance obtained by the reduction of galleïn.

s oxygen, hydrogen, etc., in distinction from vapors, as steam, which become liquid on a reduction of temperature. In present usage, since all of the supposed permanent gases have been liquified by cold and pressure, the term has resumed nearly its original signification, and is applied to any substance in the elastic…

of generalizing; the act of bringing individuals or particulars under a genus or class; deduction of a general principle from particulars. Generalization is only the apprehension of the one in the many. Sir W. Hamilton.

A white, crystalline, nitrogenous substance, obtained by the reduction of allantoïn.

Iron ore in coarse powder, prepared for reduction by the Catalan process.

Whole; entire; total; without deduction; as, the gross sum, or gross amount, the gross weight; -- opposed to net. Gross adventure (Law) the loan of money upon bottomry, i. e., on a mortgage of a ship. -- Gross average (Law), that kind of average which falls upon the gross or entire amount of ship, cargo, and freight;…

class of physical problems, involving arbitrary data, over a spherical surface, and the deduction of solutions for every point of space. The functions employed in this method are called spherical harmonic functions. Thomson & Tait. -- Harmonic suture (Anat.), an articulation by simple apposition of comparatively smoo…

From this reason; as an inference or deduction. Hence, perhaps, it is, that Solomon calls the fear of the Lord the beginning of wisdom. Tillotson.

atory pigments, widely distributed in the animal kingdom, capable of ready oxidation and reduction.

Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, H2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with…

combining form of hydrogen, indicating hydrogen as an ingredient, as hydrochloric; or a reduction product obtained by hydrogen, as hydroquinone.

pertaining to hydrometallurgy; involving the use of liquid reagents in the treatment or reduction of ores. -- Hy`dro*met`al*lur"gic*al*ly, adv.

A white, crystalline benzene derivative, C8H10O2, obtained by the reduction of phlorone.

A white crystalline substance, C6H4(OH)2, obtained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also dihydroxy benzene.

Pertaining to, or designating, an acid obtained by the reduction of sulphurous acid. See Hyposulphurous acid, under Hyposulphurous.

A nitrogenous, organic base, NH2.OH, resembling ammonia, and produced by a modified reduction of nitric acid. It is usually obtained as a volatile, unstable solution in water. It acts as a strong reducing agent.

s. Hyponitrous acid (Chem.), an unstable nitrogen acid, NOH, whose salts are produced by reduction of the nitrates, although the acid itself is not isolated in the free state except as a solution in water; -- called also nitrosylic acid.

Hyposulphurous acid. (a) Thiosulphuric acid. [Obs.] (b) An acid, H2SO2, obtained by the reduction of sulphurous acid. It is not obtained in the free state, but in an orange-yellow water solution, which is a strong reducing and bleaching agent. Called also hydrosulphurous acid.

reasons; perception of the connection between ideas; that which is inferred; inference; deduction; conclusion. Fraudulent deductions or inconsequent illations from a false conception of things. Sir T. Browne.

The act of impoverishing, or the state of being impoverished; reduction to poverty. Sir W. Scott.