Vol*ta"ic (?), a. [Cf. F. voltaïque, It. voltaico.]

1. Of or pertaining to Alessandro Volta, who first devised apparatus

for developing electric currents by chemical action, and established

this branch of electric science; discovered by Volta; as, voltaic

electricity.

2. Of or pertaining to voltaism, or voltaic electricity; as, voltaic

induction; the voltaic arc.

See the Note under Galvanism.

Voltaic arc, a luminous arc, of intense brilliancy, formed between

carbon points as electrodes by the passage of a powerful voltaic

current. — Voltaic battery, an apparatus variously constructed,

consisting of a series of plates or pieces of dissimilar metals, as

copper and zinc, arranged in pairs, and subjected to the action of a

saline or acid solution, by which a current of electricity is generated

whenever the two poles, or ends of the series, are connected by a

conductor; a galvanic battery. See Battery, 4. (b), and Note. — Voltaic

circuit. See under Circuit. — Voltaic couple or element, a single pair

of the connected plates of a battery. — Voltaic electricity. See the

Note under Electricity. — Voltaic pile, a kind of voltaic battery

consisting of alternate disks of dissimilar metals, separated by

moistened cloth or paper. See 5th Pile. — Voltaic protection of metals,

the protection of a metal exposed to the corrosive action of sea water,

saline or acid liquids, or the like, by associating it with a metal

which is positive to it, as when iron is galvanized, or coated with

zinc.

Vol*tair"e*an (?), a. [Cf. F. voltairien.] Of or relating to Voltaire,

the French author. J. Morley.

Vol*tair"ism (?), n. The theories or practice of Voltaire. J. Morley.

Vol"ta*ism (?), n. [Cf. F. voltaïsme.] (Physics) That form of

electricity which is developed by the chemical action between metals

and different liquids; voltaic electricity; also, the science which

treats of this form of electricity; — called also galvanism, from

Galvani, on account of his experiments showing the remarkable influence

of this agent on animals.

Vol*tam"e*ter (?), n. [Voltaic + - meter.] (Physics) An instrument for

measuring the voltaic electricity passing through it, by its effect in

decomposing water or some other chemical compound acting as an

electrolyte.

Vol"ta*plast (?), n. [Voltaic + Gr. &?; molded.] A form of voltaic, or

galvanic, battery suitable for use electrotyping. G. Francis.

The Gutenberg Webster's Unabridged Dictionary: Section T, U, V, and W · 第 2592 / 3573 题