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cathode
cath·ode C0164200 (kăth′ōd′)n. Abbr. ka1. A negatively charged electrode, as of an electrolytic cell, storage battery, diode, or electron tube.2. The positively charged terminal of a primary cell or a storage battery that is supplying current.
[Greek kathodos, descent : kat-, kata-, cata- + hodos, way, path.]
ca·thod′ic (kă-thŏd′ĭk) adj.ca·thod′i·cal·ly adv.cathode (ˈkæθəʊd) n1. (General Physics) the negative electrode in an electrolytic cell; the electrode by which electrons enter a device from an external circuit2. (General Physics) the negatively charged electron source in an electronic valve3. (General Physics) the positive terminal of a primary cell[C19: from Greek kathodos a descent, from kata- down + hodos way] cathodal, cathodic, caˈthodical adjcath•ode (ˈkæθ oʊd)
n. 1. the electrode or terminal by which current leaves an electrolytic cell, voltaic cell, battery, etc. 2. the positive terminal of a voltaic cell or battery. 3. the negative terminal, electrode, or element of an electron tube or electrolytic cell. [1825–35; < Greek káthodos a way down] ca•thod′ic (kæˈθɒd ɪk) adj. cath·ode (kăth′ōd′)1. The negative electrode in an electrolytic cell, toward which positively charged particles are attracted. The cathode has a negative charge because it is connected to the negatively charged end of an external power supply.2. The positive electrode in a voltaic cell, such as a battery, toward which negatively charged particles are attracted. The cathode gets its positive charge from the chemical reaction that happens inside the battery, not from an external source. Compare anode.cathode1. The electrode carrying the negative charge in a solution undergoing electrolysis.2. A negative electrode.Thesaurus| Noun | 1. | cathode - a negatively charged electrode that is the source of electrons entering an electrical devicecold cathode - a cathode that is a source of electrons without being heatedelectrode - a conductor used to make electrical contact with some part of a circuitelectrolytic 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)photocathode - a cathode that emits electrons when illuminatedelectron 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 envelopeanode - a positively charged electrode by which electrons leave an electrical device | | 2. | cathode - the positively charged terminal of a voltaic cell or storage battery that supplies currentstorage battery, accumulator - a voltaic battery that stores electric chargedepot, terminal, terminus - station where transport vehicles load or unload passengers or goodsgalvanic cell, primary cell, voltaic cell - an electric cell that generates an electromotive force by an irreversible conversion of chemical to electrical energy; cannot be rechargedanode - the negatively charged terminal of a voltaic cell or storage battery that supplies current |
Translationscathode
cathode, electrodeelectrode,
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.
..... Click the link for more information. through which current leaves an electric device. 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
..... Click the link for more information. , it is the negative electrode in the electrolytic cell.Cathode (1) In an electron tube or a gas-discharge tube, the electrode that is the source of electrons that ensure the conductivity of interelectrode space in a vacuum or maintain the steadiness of the passage of an electric current through the gas. Depending on the mechanism of emission of electrons, there exist thermionic cathodes, photocathodes, and cold cathodes. (2) The negatively charged electrode (pole) of a source of current (galvanic cell, storage battery). (3) The electrode of an electrolytic cell, an electric arc, and other similar devices that are connected to the negative pole of a source of current. cathode[′kath‚ōd] (electricity) The terminal at which current leaves a primary cell or storage battery; it is negative with respect to the device, and positive with respect to the external circuit. (electronics) The primary source of electrons in an electron tube; in directly heated tubes the filament is the cathode, and in indirectly heated tubes a coated metal cathode surrounds a heater. Designated K. Also known as negative electrode. The terminal of a semiconductor diode that is negative with respect to the other terminal when the diode is biased in the forward direction. (physical chemistry) The electrode at which reduction takes place in an electrochemical cell, that is, a cell through which electrons are being forced. cathode1. the negative electrode in an electrolytic cell; the electrode by which electrons enter a device from an external circuit 2. the negatively charged electron source in an electronic valve 3. the positive terminal of a primary cell cathodeA terminal on an electrical device that has a negative charge. Current flows from the cathode to the positively charged anode; however, the electrons actually flow from the anode to the cathode. Derived from Greek, cathode and anode mean "down" and "up" respectively. See electrode, cold cathode and OLED layers.
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| In vacuum tubes, the cathodes are the emitters, and the anodes are the collectors. |
cathode
cathode [kath´ōd] the electrode at which reduction occurs and to which cations are attracted. adj., adj cathod´ic.cath·ode (Ca, C), (kath'ōd), The negative pole of a galvanic battery or the electrode connected with it; the electrode toward which positively charged ions (cations) migrate and are reduced, and into which electrons are fed from their source (anode or generator). Compare: anode. Synonym(s): negative electrode [G. kathodos, a way down, fr. kata, down, + hodos, a way] cath·ode (C) (kath'ōd) 1. The negative pole of a galvanic battery or the electrode connected with it; the electrode to which positively charged ions (cations) migrate.
Compare: anode2. Negatively charged part of the x-ray tube head; it contains the tungsten filament.
Synonym(s): negative electrode. [G. kathodos, a way down, fr. kata, down, + hodos, a way]cathode a negatively charged electrode to which positively charged ions move. Compare ANODE.CathodeThe negative electrode from which an electromagnetic current flows.Mentioned in: Bone Growth Stimulationcath·ode (C) (kath'ōd) 1. The negative pole of a galvanic battery or the electrode connected with it; the electrode to which positively charged ions (cations) migrate.
Compare: anode2. Negatively charged part of the x-ray tube head; it contains the tungsten filament.
Synonym(s): negative electrode. [G. kathodos, a way down, fr. kata, down, + hodos, a way]FinancialSeeCACATHODE
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| CATHODE➣Computer Algebra Tools for Handling Ordinary Differential Equations |
cathode
Related to cathode: Cathode rays, Cathode Follower, Cathode ray tube, cathode ray oscilloscopeAntonyms for cathodenoun a negatively charged electrode that is the source of electrons entering an electrical deviceRelated Words- cold cathode
- electrode
- electrolytic cell
- photocathode
- electron tube
- thermionic tube
- thermionic vacuum tube
- thermionic valve
- vacuum tube
- tube
Antonymsnoun the positively charged terminal of a voltaic cell or storage battery that supplies currentRelated Words- storage battery
- accumulator
- depot
- terminal
- terminus
- galvanic cell
- primary cell
- voltaic cell
Antonyms |