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单词 electrode
释义

electrode


e·lec·trode

E0074700 (ĭ-lĕk′trōd′)n.1. A solid electric conductor through which an electric current enters or leaves an electrolytic cell or other medium.2. A collector or emitter of electric charge or of electric-charge carriers, as in a semiconducting device.

electrode

(ɪˈlɛktrəʊd) n1. (General Physics) a conductor through which an electric current enters or leaves an electrolyte, an electric arc, or an electronic valve or tube2. (General Physics) an element in a semiconducting device that emits, collects, or controls the movement of electrons or holes

e•lec•trode

(ɪˈlɛk troʊd)

n. a conductor through which an electric current enters or leaves a nonmetallic portion of a circuit, as a dielectric, an electrolyte, or a semiconductor. [1834; electr(ic) + -ode2]

e·lec·trode

(ĭ-lĕk′trōd′) A piece of metal or carbon through which an electric current enters or leaves a liquid or gas, as in a battery or vacuum tube.

electrode

1. A conductor which allows current to flow through an electrolyte, gas, vacuum, dielectric, or semiconductor.2. A terminal that conducts electricity toward or away from a conductor in a circuit.
Thesaurus
Noun1.electrode - a conductor used to make electrical contact with some part of a circuitelectrode - a conductor used to make electrical contact with some part of a circuitanode - a positively charged electrode by which electrons leave an electrical devicebase - (electronics) the part of a transistor that separates the emitter from the collectorelectric battery, battery - a device that produces electricity; may have several primary or secondary cells arranged in parallel or seriescathode - a negatively charged electrode that is the source of electrons entering an electrical devicecollector - the electrode in a transistor through which a primary flow of carriers leaves the region between the electrodesconductor - a device designed to transmit electricity, heat, etc.electrolytic cell - a cell containing an electrolyte in which an applied voltage causes a reaction to occur that would not occur otherwise (such as the breakdown of water into hydrogen and oxygen)electron gun - the electrode that is the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses itelectronic equipment - equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor)emitter - the electrode in a transistor where electrons originatecontrol grid, grid - an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tubeelectron tube, thermionic tube, thermionic vacuum tube, thermionic valve, vacuum tube, tube - electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
Translations
电极

electrode

(iˈlektrəud) noun a conductor through which a current of electricity enters or leaves a battery etc. 電極 电极
See electrode

electrode


electrode,

terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit. In most familiar circuits current is carried by metallic conductors, but in some circuits the current passes for some distance through a nonmetallic conductor. For example, in electrolysiselectrolysis
, passage of an electric current through a conducting solution or molten salt that is decomposed in the process. The Electrolytic Process

The electrolytic process requires that an electrolyte, an ionized solution or molten metallic salt, complete an
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 current passes through a liquid electrolyte; in a fluorescent lamp current passes through a gas. An electrode is usually in the form of a wire, rod, or plate. It may be made of a metal, e.g., copper, lead, platinum, silver, or zinc, or of a nonmetal, commonly carbon. The electrode through which current passes from the metallic to the nonmetallic conductor is called the anode, and that through which current passes from the nonmetallic to the metallic conductor, the cathode. (Electron flow is in a direction opposite that of conventionally defined current.) In most familiar electric devices, current flows from the terminal at higher electric potential (the positive electrode) to the terminal at lower electric potential (the negative electrode); therefore, the anode is usually the positive electrode and the cathode the negative electrode. In some electric devices, e.g., an electric battery, nonelectric energy is converted to electric energy, causing current to flow within the device from the negative electrode to the positive electrode, so that the anode is the negative electrode and the cathode is the positive electrode.

Electrode

 

a structural component of an electronic, ion, or electrical engineering device or production apparatus. It consists of a conductor with a specific shape, which connects a section of an electric circuit in contact with a working medium—a vacuum (in the practical sense), gas, semiconductor, or liquid—to the remainder of the circuit (which is formed by conductors).

The electrodes of electronic devices (electron tubes, electronbeam instruments, semiconductor devices, and so on) are usually in the form of a plate, grid, cylinder, or the like. They have a wide variety of functions. For example, as cathodes and photocathodes, they act as sources of electrons; as grids (control, shield, and suppressor types) and the electrodes of electron guns, they are used to create within a device electric fields that control the motion of electrons and ions in the working medium; as anodes (plates), they collect electrons.


Electrode

 

in electrochemistry, a metal, oxide, or other electrical conductor in contact with an ionic conductor, such as an electrolytic solution or a fused electrolyte. The most important characteristic of electrodes is the electrode potential established at the electrode-electrolyte boundary. Depending on use, electrodes may be classified as reference, indicator, and other types. Systems of two different electrodes can be used as chemical sources of current; when direct current passes through such systems, they act as electrolytic cells.

electrode

[i′lek‚trōd] (electricity) An electric conductor through which an electric current enters or leaves a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum. One of the terminals used in dielectric heating or diathermy for applying the high-frequency electric field to the material being heated.

electrode

1. In arc welding, the component in a welding circuit through which an electric current is conducted between the electrode holder and the arc. 2.In resistance welding, the component through which the electric current in the welding machine passes (usually accompanied by pressure) directly to the work.

electrode

1. a conductor through which an electric current enters or leaves an electrolyte, an electric arc, or an electronic valve or tube 2. an element in a semiconducting device that emits, collects, or controls the movement of electrons or holes

electrode

A device that emits, controls or receives electricity. Typically an end point or wire made of metal or some composite material, there are countless electrodes in electrical and electronics products. For example, in a vacuum tube, the cathode emitter is a "negative" electrode. The transparent wires made of indium-tin-oxide (ITO) that cross an LCD screen are electrodes. See battery, air interface and cathode.

electrode


electrode

 [e-lek´trōd] either of two terminals of an electrically conducting system or cell; specifically, the uninsulated portion of a lead that is in direct contact with the body.active electrode therapeutic electrode.calomel electrode one capable of both collecting and giving up chloride ions in neutral or acidic aqueous media, consisting of mercury in contact with mercurous chloride; used as a reference electrode in pH measurements.depolarizing electrode an electrode that has a resistance greater than that of the portion of the body enclosed in the circuit.hydrogen electrode an electrode made by depositing platinum black on platinum and then allowing it to absorb hydrogen gas to saturation; used in determination of hydrogen ion concentration.indifferent electrode one larger than a therapeutic electrode, dispersing electrical stimulation over a larger area.point electrode an electrode having on one end a metallic point; used in applying current.therapeutic electrode one smaller than an indifferent electrode, producing electrical stimulation in a concentrated area; called also active electrode.

e·lec·trode

(ē-lek'trōd), 1. Device to record one of the two extremities of an electric circuit; one of the two poles of an electric battery or of the end of the conductors connected thereto. 2. An electrical terminal specialized for a particular electrochemical reaction. [electro- + G. hodos, way]

electrode

Cardiac pacing A part of an electric conductor through which a current enters or leaves; uninsulated conductive part of a pacing lead or a unipolar implantable pulse generator's casing which makes electrical contact with tissue; electrodes are used to record the electric activity of contracting muscles; electromyographic data is collected by surface electrodes, fine wire and needle electrodes. See Ring electrode, SilverBullet electrode, Tip electrode.

e·lec·trode

(ĕ-lek'trōd) 1. Device to record one of the two extremities of an electric circuit; one of the two poles of an electric battery or of the end of the conductors connected thereto. 2. An electrical terminal specialized for a particular electrochemical reaction. [electro- + G. hodos, way]

Electrode

Medium for conducting an electrical current-in this case, platinum wires.Mentioned in: Electrophysiology Study of the Heart

e·lec·trode

(ĕ-lek'trōd) Device to record one of two extremities of an electric circuit; one of two poles of an electric battery or of the end of the conductors connected thereto. [electro- + G. hodos, way]
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electrode


Related to electrode: Indicator electrode
  • noun

Words related to electrode

noun a conductor used to make electrical contact with some part of a circuit

Related Words

  • anode
  • base
  • electric battery
  • battery
  • cathode
  • collector
  • conductor
  • electrolytic cell
  • electron gun
  • electronic equipment
  • emitter
  • control grid
  • grid
  • electron tube
  • thermionic tube
  • thermionic vacuum tube
  • thermionic valve
  • vacuum tube
  • tube
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更新时间:2025/1/31 23:03:27