cathode
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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]
cathode
/cath·ode/ (kath´ōd) the electrode at which reduction occurs and to which cations are attracted.cathod´iccathode (C)
[kath′ōd]
Etymology: Gk, kata, down, hodos, way
1 the electrode at which reduction occurs.
2 the negative side of the x-ray tube, which consists of the focusing cup and the filament.
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: anode
Compare: anode
2. Negatively charged part of the x-ray tube head; it contains the tungsten filament.
Synonym(s): negative electrode.
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.Cathode
The negative electrode from which an electromagnetic current flows.
Mentioned in: Bone Growth Stimulation
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: anode
Compare: anode
2. Negatively charged part of the x-ray tube head; it contains the tungsten filament.
Synonym(s): negative electrode.
Synonym(s): negative electrode.
[G. kathodos, a way down, fr. kata, down, + hodos, a way]
cathode (kath´ōd),
n a negative electrode from which electrons are emitted and to which positive ions are attracted. In radiographic tubes, the cathode usually consists of a helical tungsten filament, behind which a molybdenum reflector cup is located to focus the electron emission toward the target of the anode.
cathode ray tube (CRT),
n a vacuum tube in which a beam of electrons is focused to a small point on a luminescent screen and can be varied in position to form a pattern.
cathode
1. the negative electrode, from which electrons are emitted and to which positive ions are attracted.
2. the electrode through which current leaves a nerve or other substance.
cathode beam, cathode ray
the beam of electrons, accompanied by high electrical potential which flows from the cathode to the anode in the x-ray tube and interacts with the tungsten target to produce x-rays.
cathode filament
the source of electrons in the cathode tube that interacts with the anode target to produce x-rays.