Search the Dictionary

Any force or reagent which causes the formation of a precipitate.

insoluble substance separated from a solution in a concrete state by the action of some reagent added to the solution, or of some force, such as heat or cold. The precipitate may fall to the bottom (whence the name), may be diffused through the solution, or may float at or near the surface. Red precipitate (Old. Chem),…

nts before they take place; foresight. God's certain prescience of the volitions of moral agents. J. Edwards.

That which preserves, or has the power of preserving; a presevative agent. To wear tablets as preservatives against the plague. Bacon.

Usually Press work. The work of a press agent. [Chiefly Theat. Cant]

vernment; applied particularly to that of England. -- Prime mover. (Mech.) (a) A natural agency applied by man to the production of power. Especially: Muscular force; the weight and motion of fluids, as water and air; heat obtained by chemical combination, and applied to produce changes in the volume and pressure of s…

One who employs another to act for him, -- as distinguished from an agent. Wharton. Bouvier. Burrill.

To act as a proctor toward; to manage as an attorney or agent. Bp. Warburton.

One who manages another's affairs, either generally or in a special matter; an agent; a proctor. Chaucer. Shak.

Efficient contrivance; management; agency. They think it done By her procurement. Dryden.

which in ordinary natural sequence produces a specific result, no independent disturbing agencies intervening. -- Proximate principle (Physiol. Chem.), one of a class of bodies existing ready formed in animal and vegetable tissues, and separable by chemical analysis, as albumin, sugar, collagen, fat, etc.…

The agency for another who acts through the agent; authority to act for another, esp. to vote in a legislative or corporate capacity. I have no man's proxy: I speak only for myself. Burke.

The office or agency of a proxy.

An aqueous medicine, containing little, if any, medicinal agent; a tea or tisane.

A blue coloring matter found in the pus from old sores, supposed to be formed through the agency of a species of bacterium (Bacillus pyocyaneus).C13H10N2O

m decomposed meat infusions, and supposed to be formed from albuminous matter through the agency of bacteria.

Acting by the agency of heat and magnetism; as, a pyromagnetic machine for producing electric currents.

Having the property of crystallizing by the agency of fire.

of textures of hemp, linen, or cotton in a copper vessel, -- formerly used as a remedial agent. Dunglison.

valid; to establish; to settle; especially, to give sanction to, as something done by an agent or servant; as, to ratify an agreement, treaty, or contract; to ratify a nomination. It is impossible for the divine power to set a seal to a lie by ratifying an imposture with such a miracle. South.