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The act of depriving of polarity, or the result of such action; reduction to an unpolarized condition. Depolarization of light (Opt.), a change in the plane of polarization of rays, especially by a crystalline medium, such that the light which had been extinguished by the analyzer reappears as if the polarization had b…

The falling of value; reduction of worth. Burke.

That which is derived; a derivative; a deduction. From the Euphrates into an artificial derivation of that river. Gibbon.

That which is derived; deduction; inference. [Obs.] I offer these derivements from these subjects. W. Montagu.

eries of dependent propositions as a consequence of the denial of the last; a species of reductio ad absurdum. Whately.

The act or process of digesting; reduction to order; classification; thoughtful consideration.

A red crystalline nitrogenous substance or artificial production, which by reduction passes directly to indigo.

The act of diminishing, or of making or becoming less; state of being diminished; reduction in size, quantity, or degree; -- opposed to augmentation or increase.

A white, crystalline, nitrogenous substance obtained by the reduction of isatin. It is a member of the indol series; -- hence its name.

A crystalline nitrogenous base, C10H8N2, obtained by the reduction of pyridine.

To deduct from an account, debt, charge, and the like; to make an abatement of; as, merchants sometimes discount five or six per cent for prompt payment of bills.

Reduction from a better to a worse state; as, disimprovement of the earth.

To cut off a part from; to shorten; to deduct from; to subject to a deduction; as, to dock one's wages.

An allowance or deduction made from the gross veight of goods. Simmonds.

A lose of advantage, or deduction from profit, value, success, etc.; a discouragement or hindrance; objectionable feature. The avaridrawback from the wisdom ascribed to him. Hallam.

ally in a manna from Madagascar, and in certain plants, and produced artificially by the reduction of galactose and lactose or milk sugar.

The act of obtaining by separation, or as the result of eliminating; deduction. [See Eliminate,

A logical deduction. [Obs.] Sir T. Browne.

; incorrect; false; mistaken; as, an erroneous doctrine; erroneous opinion, observation, deduction, view, etc. -- Er*ro"ne*ous*ly, adv. -- Er*ro"ne*ous*ness, n.

orless crystalline substance, C12H4N2O8 by heating an ammonium salt of mellitic acid. By reduction it is changed to a dark blue substance (euchrone), -- hence its name.