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- said of roads. Chaucer. The ways in that vale were very deep. Clarendon. A deep line of operations (Military), a long line. -- Deep mourning (Costume), mourning complete and strongly marked, the garments being not only all black, but also composed of lusterless materials and of such fashion as is identified with mou…

The act or operation of depriving of oxygen.

The operation of separating water from spirits and acids, by evaporation or repeated distillation; -- called also concentration, especially when acids are the subject of it. [Obs.]

The operation of reducing to a lower degree; -- said of equations.

The operation of deducing one function from another according to some fixed law, called the law of derivation, as the of differentiation or of integration.

nce between any two consecutive wheels of a train (45 to 50 feet), laid inside a rail and operated by the wheels so that the switch cannot be thrown until all the train is past the switch.

Detonating primer, a primer exploded by a fuse; -- used to explode gun cotton in blasting operations. -- Detonating tube, a strong tube of glass, usually graduated, closed at one end, and furnished with two wires passing through its sides at opposite points, and nearly meeting, for the purpose of exploding gaseous mix…

To change the form of, as of an algebraic expression, by executing certain indicated operations without changing the value.

on them. These plates must be adjusted in a certain determined way before the lock can be operated. -- Dial plate, the plane or disk of a dial or timepiece on which lines and figures for indicating the time are placed.

he discursive faculty, its acts or products. I would employ . . . dianoetic to denote the operation of the discursive, elaborative, or comparative faculty. Sir W. Hamilton.

The science of the dianoetic faculties, and their operations. Sir W. Hamilton.

oisture; to expose to a gentle heat in a boiler or matrass, as a preparation for chemical operations.

ard of all other liberties. Macaulay. Discussion of a problem or an equation (Math.), the operation of assigning different reasonable values to the arbitrary quantities and interpreting the result. Math. Dict.

(a) To permit the neglect or omission of, as a form, a ceremony, an oath; to suspend the operation of, as a law; to give up, release, or do without, as services, attention, etc.; to forego; to part with. (b) To allow by dispensation; to excuse; to exempt; to grant dispensation to or for. [Obs.] "Conniving and dispensi…

he separation of the volatile parts of a substance from the more fixed; specifically, the operation of driving off gas or vapor from volatile liquids or solids, by heat in a retort or still, and the condensation of the products as far as possible by a cool receiver, alembic, or condenser; rectification; vaporization; c…

The steps or operations by which steam is supplied to and withdrawn from the cylinder at each stroke of the piston; viz., admission, suppression or cutting off, release or exhaust, and compression of exhaust steam prior to the next admission. Geographical distribution, the natural arrangements of animals and plants in…

s each, either, every; a distributive numeral, as (Latin) bini (two by two). Distributive operation (Math.), any operation which either consists of two or more parts, or works upon two or more things, and which is such that the result of the total operation is the same as the aggregated result of the two or more partia…

ntity is contained in another; the reverse of multiplication; also, the rule by which the operation is performed.

Acting or operating in two directions or with both motions; producing a twofold result; as, a double-acting engine or pump.

the beginning and the end of our efforts to know. Sir W. Hamilton. Doubt, in order to be operative in requiring an acquittal, is not the want of perfect certainty (which can never exist in any question of fact) but a defect of proof preventing a reasonable assurance of quilt. Wharton.