| voltage-gated channel | A class of ion channel's that open and close in response to change in the electrical potential across the plasma membrane of the cell; voltage-gated Na+ c.'s are important for conducting action potential along nerve cell processes. (05 Mar 2000) |
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| voltagraphy | In electrotypy, the act or art of copying, in metals deposited by electrolytic action, a form or pattern which is made the negative electrode. Origin: Voltaic. Source: Websters Dictionary (01 Mar 1998) |
| voltaic | 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, and Note. Voltaic circuit. See 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 galvanised, or coated with zinc. Origin: Cf. F. Voltaique, It. Voltaico. Source: Websters Dictionary (01 Mar 1998) |
| voltaic cell | <chemistry> A device in which chemical energy from a spontaneous redox reaction is changed to electrical energy that can be used to do work, also called a galvanic cell. (09 Jan 1998) |
| voltaic taste | A metallic or sour taste produced by the application of static electricity to the tongue. Synonym: voltaic taste. (05 Mar 2000) |
| voltaism | <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. Origin: Cf. F. Voltaisme. Source: Websters Dictionary (01 Mar 1998) |
| voltameter | <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. Origin: Voltaic. Source: Websters Dictionary (01 Mar 1998) |
| voltampere | A unit of electrical power; the product of 1 volt by 1 ampere; equivalent to 1 watt or 1/1000 kilowatt. (05 Mar 2000) |
| voltaplast | A form of voltaic, or galvanic, battery suitable for use electrotyping. Origin: Voltaic + Gr. Molded. Source: Websters Dictionary (01 Mar 1998) |
| voltatype | An electrotype. Origin: Voltaic + type. Source: Websters Dictionary (01 Mar 1998) |
| volti | Turn, that is, turn over the leaf. Volti subito [It. Turn over quickly. Origin: It, fr. Voltare to turn. See Volt a tread. Source: Websters Dictionary (01 Mar 1998) |
| voltmeter | <chemistry> An instrument that measures cell potential by drawing electric current through a known resistance. (09 Jan 1998) |
| Voltolini's disease | Disease of the labyrinth, leading to deafmutism, in young children. (05 Mar 2000) |
| Voltolini, Friedrich | <person> German laryngologist, 1819-1889. See: Voltolini's disease. (05 Mar 2000) |
| voltzite | <chemical> An oxysulphide of lead occurring in implanted spherical globules of a yellowish or brownish colour; called also voltzine. Origin: So named in honor of Voltz, a French engineer. Source: Websters Dictionary (01 Mar 1998) |