cathode

(redirected from negative electrode)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to negative electrode: anode

cath·ode

 (kăth′ōd′)
n. Abbr. ka
1. 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)
n
1. (General Physics) the negative electrode in an electrolytic cell; the electrode by which electrons enter a device from an external circuit
2. (General Physics) the negatively charged electron source in an electronic valve
3. (General Physics) the positive terminal of a primary cell
[C19: from Greek kathodos a descent, from kata- down + hodos way]
cathodal, cathodic, caˈthodical adj

cath•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.

cathode

1. The electrode carrying the negative charge in a solution undergoing electrolysis.
2. A negative electrode.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cathode - a negatively charged electrode that is the source of electrons entering an electrical device
cold cathode - a cathode that is a source of electrons without being heated
electrode - a conductor used to make electrical contact with some part of a circuit
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)
photocathode - a cathode that emits electrons when illuminated
electron 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
anode - 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 current
storage battery, accumulator - a voltaic battery that stores electric charge
depot, terminal, terminus - station where transport vehicles load or unload passengers or goods
galvanic cell, primary cell, voltaic cell - an electric cell that generates an electromotive force by an irreversible conversion of chemical to electrical energy; cannot be recharged
anode - the negatively charged terminal of a voltaic cell or storage battery that supplies current
Translations
katód

cathode

[ˈkæθəʊd]
A. Ncátodo m
B. CPD cathode ray Nrayo m catódico
cathode ray tube Ntubo m de rayos catódicos

cathode

[ˈkæθəʊd] ncathode fcathode-ray tube [ˈkæθəʊdreɪ] ntube m cathodique

cathode

nKat(h)ode f

cathode

:
cathode ray
nKat(h)odenstrahl m
cathode-ray tube
nKat(h)odenstrahlröhre f

cathode

[ˈkæθəʊd] n (Elec) → catodo
References in periodicals archive ?
It can be produced from the electrolysis of water (positive and negative electrodes which are put into water and an electrical current splits the molecules, making hydrogen bubbles by the negative electrode and oxygen bubbles by the positive electrode).
This means that when a sufficient voltage is applied to a semiconductor, electrons start flowing to the positive electrode and holes start flowing towards the negative electrode, generating an electric current.
Pennsylvania-based Axion Power International Incorporated (Axion Power International) (OTC Bulletin Board: AXPW), a company that develops advanced lead-carbon PbC(R) batteries, has completed final preparations for construction of a second generation automated production line for its proprietary PbC(R) negative electrode.
For lead I, the right arm (RA) electrode serves as the negative electrode and the left arm (LA) electrode serves as the positive electrode.
* Normal polarity of electrodes as described in "Methods" section was with negative electrode at most effective location and positive electrode at less effective location, and reverse polarity switched polarity.
9 signify moving direction from the center to the negative electrode and the positive electrode, respectively.
Under the license agreement, Nihon Micro Coating will nonexclusively be able to develop, prototype, manufacture, use, and market lithium ion capacitors based on FHI's capacity that uses its proprietary pre-doping technology to occlude lithium ions on a negative electrode to significantly increase the capacitor's energy density.
Subaru noted that the Li-ion capacitor, which "drastically enhances energy density, while retaining the inherently superior capability of instantaneous charge/discharge and the high durability of regular capacitors," features a negative electrode that uses newly developed Li-ion occlusive carbon material, as well as an electrolyte made of Li-ion.
Although it is unimportant whether the positive or negative electrode is touched to the pad, slightly better excursions on the meter needle are found if the negative electrode is used.
The original MFCs produce electricity through the action of bacteria passing electrons through an anode, the negative electrode of a fuel cell.
When positively charged electrolyte ions form a layer on the surface of the negative electrode, electrons beneath the surface pair up with them.
The cells in these batteries all consist of three basic elements: (1) a positive electrode (or plate) and (2) a negative electrode, both of which are immersed in (3) a diluted solution of sulfuric acid, called the electrolyte.