Webster's Dictionary, 1913

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Electro-metric, Electro-metrical adjective [ Confer French électrométrique .] Pertaining to electrometry; made by means of an electrometer; as, an electrometrical experiment.

Electro-motion noun The motion of electricity or its passage from one metal to another in a voltaic circuit; mechanical action produced by means of electricity.

Electro-motive adjective Producing electro-motion; producing, or tending to produce, electricity or an electric current; causing electrical action or effects.

Electro-motive force (Physics) , the force which produces, or tends to produce, electricity, or an electric current; sometimes used to express the degree of electrification as equivalent to potential, or more properly difference of potential.

Electro-muscular adjective (Physiol.) Pertaining the reaction (contraction) of the muscles under electricity, or their sensibility to it.

Electro-negative adjective (Chem. & Physics) (a) Having the property of being attracted by an electro-positive body, or a tendency to pass to the positive pole in electrolysis, by the law that opposite electricities attract each other. (b) Negative; nonmetallic; acid; -- opposed to positive , metallic , or basic .

Electro-negative noun (Chem. & Physics) A body which passes to the positive pole in electrolysis.

Electro-physiological adjective (Physiol.) Pertaining to electrical results produced through physiological agencies, or by change of action in a living organism.

Electro-physiology noun (Physiol.) That branch of physiology which treats of electric phenomena produced through physiological agencies.

Electro-polar adjective (Physics) Possessing electrical polarity; positively electrified at one end, or on one surface, and negatively at the other; -- said of a conductor.

Electro-positive adjective
1. (Physics) Of such a nature relatively to some other associated body or bodies, as to tend to the negative pole of a voltaic battery, in electrolysis, while the associated body tends to the positive pole; -- the converse or correlative of electro-negative .

» An element that is electro-positive in one compound may be electro-negative in another, and vice versa .

2. (Chemistry) Hence: Positive; metallic; basic; -- distinguished from negative , nonmetallic , or acid .

Electro-positive noun (Chem. & Physics) A body which passes to the negative pole in electrolysis.

Electro-puncturation, Electro- puncturing (?; 135) , noun (Medicine) See Electropuncture .

Electro-puncture noun (Medicine) An operation that consists in inserting needless in the part affected, and connecting them with the poles of a galvanic apparatus.

Electro-stereotype noun Same as Electrotype .

Electro-telegraphic adjective Pertaining to the electric telegraph, or by means of it.

Electro-telegraphy noun The art or science of constructing or using the electric telegraph; the transmission of messages by means of the electric telegraph.

Electro-therapeutics noun (Medicine) The branch of medical science which treats of the applications agent.

Electro-thermancy noun That branch of electrical science which treats of the effect of an electric current upon the temperature of a conductor, or a part of a circuit composed of two different metals.

Electro-tint noun (Fine Arts) A style of engraving in relief by means of voltaic electricity. A picture is drawn on a metallic plate with some material which resists the fluids of a battery; so that, in electro- typing, the parts not covered by the varnish, etc., receive a deposition of metal, and produce the required copy in intaglio. A cast of this is then the plate for printing.

Electro-vital adjective Derived from, or dependent upon, vital processes; -- said of certain electric currents supposed by some physiologists to circulate in the nerves of animals.

Electro-vitalism noun (Physiol.) The theory that the functions of living organisms are dependent upon electricity or a kindred force.

Electrometer noun [ Electro- + -meter : confer French électromètre .] (Physics) An instrument for measuring the quantity or intensity of electricity; also, sometimes, and less properly, applied to an instrument which indicates the presence of electricity (usually called an electroscope ).

Balance electrometer . See under Balance .

Electrometry noun [ Confer French électrométrie .] (Physics) The art or process of making electrical measurements.

Electromotor noun [ Confer French électromoteur .]
1. (Physics) A mover or exciter of electricity; as apparatus for generating a current of electricity.

2. (Mech.) An apparatus or machine for producing motion and mechanical effects by the action of electricity; an electro-magnetic engine.

Electron noun [ New Latin , from Greek 'h`lektron . See Electric .] Amber; also, the alloy of gold and silver, called electrum .

Electron [ New Latin , from Greek .... See Electric .] (Physics & Chem.) One of those particles, having about one thousandth the mass of a hydrogen atom, which are projected from the cathode of a vacuum tube as the cathode rays and from radioactive substances as the beta rays; -- called also corpuscle . The electron carries (or is) a natural unit of negative electricity, equal to 3.4 x 10 -10 electrostatic units. It has been detected only when in rapid motion; its mass, which is electromagnetic, is practically constant at the lesser speeds, but increases as the velocity approaches that of light. Electrons are all of one kind, so far as known, and probably are the ultimate constituents of all atoms. An atom from which an electron has been detached has a positive charge and is called a coelectron .

Electronic adjective (Physics & Chem.) Of or pertaining to an electron or electrons.

Electropathy noun [ Electro- + Greek pa`qos suffering.] (Medicine) The treatment of disease by electricity.

Electrophone noun [ Electro- + Greek fwnh` sound.] (Physics) An instrument for producing sound by means of electric currents.

Electrophorus noun ; plural
Electroplate transitive verb [ imperfect & past participle Electroplating .] (Mech.) To plate or cover with a coating of metal, usually silver, nickel, or gold, by means of electrolysis.

Electroplater noun One who electroplates.

Electroplating noun The art or process of depositing a coating (commonly) of silver, gold, or nickel on an inferior metal, by means of electricity.

Electropoion noun , or Electropoion fluid [ New Latin ; electro- + Greek poiw^n , present participle of poiei^n to make.] (Electricity) An exciting and depolarizing acid solution used in certain cells or batteries, as the Grenet battery. Electropoion is best prepared by mixing one gallon of concentrated sulphuric acid diluted with three gallons of water, with a solution of six pounds of potassium bichromate in two gallons of boiling water. It should be used cold.

Electroscope noun [ Electro- + -scope : confer French électroscope .] (Physics) An instrument for detecting the presence of electricity, or changes in the electric state of bodies, or the species of electricity present, as by means of pith balls, and the like.

Condensing electroscope (Physics) , a form of electroscope in which an increase of sensibility is obtained by the use of a condenser.

Electroscopic adjective Relating to, or made by means of, the electroscope.

Electrostatic adjective Pertaining to electrostatics.

Electrostatics noun (Physics) That branch of science which treats of statical electricity or electric force in a state of rest.

Electrotonic adjective
1. (Physics) Of or pertaining to electrical tension; -- said of a supposed peculiar condition of a conducting circuit during its exposure to the action of another conducting circuit traversed by a uniform electric current when both circuits remain stationary. Faraday.

2. (Physiol.) Relating to electrotonus; as, the electrotonic condition of a nerve.

Electrotonize transitive verb (Physiol.) To cause or produce electrotonus.

Electrotonous adjective Electrotonic.

Electrotonus noun [ New Latin , from combining form electro- + Greek ... tension.] (Physiol.) The modified condition of a nerve, when a constant current of electricity passes through any part of it. See Anelectrotonus , and Catelectrotonus .

Electrotype noun [ Electro- + -type .] A facsimile plate made by electrotypy for use in printing; also, an impression or print from such plate. Also used adjectively.

» The face of an electrotype consists of a shell of copper, silver, or the like, produced by the action of an electrical current upon a plate of metal and a wax mold suspended in an acid bath and connected with opposite poles of the battery. It is backed up with a solid filling of type metal.

Electrotype transitive verb [ imperfect & past participle Electrotyped ; present participle & verbal noun Electrotyping .] To make facsimile plates of by the electrotype process; as, to electrotype a page of type, a book, etc. See Electrotype , noun

Electrotyper noun One who electrotypes.

Electrotypic adjective Pertaining to, or effected by means of, electrotypy.

Electrotyping noun The act or the process of making electrotypes.

Electrotypy noun The process of producing electrotype plates. See Note under Electrotype , noun

Electrum noun [ Latin , from Greek .... See Electric , and confer Electre , Electron .]
1. Amber.

2. An alloy of gold and silver, of an amber color, used by the ancients.

3. German-silver plate. See German silver , under German .

Electuary noun ; plural Electuaries . [ Middle English letuaire , Old French lettuaire , electuaire , French électuaire , Latin electuarium , electarium . probably from Greek ..., ... a medicine that is licked away, from Greek ... to lick up; 'ek out + ... to lick. See Lick , and confer Eclegm .] (Medicine) A medicine composed of powders, or other ingredients, incorporated with some convserve, honey, or sirup; a confection. See the note under Confection .