anode(redirected from positive electrode)
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Related to positive electrode: cathode, anode
1. A positively charged electrode, as of an electrolytic cell, storage battery, diode, or electron tube.
2. The negatively charged terminal of a primary cell or of a storage battery that is supplying current.
[Greek anodos, a way up : ana-, ana- + hodos, way.]
a·nod′ic (ə-nŏd′ĭk), a·nod′al (ə-nōd′l) adj.
a·nod′i·cal·ly, a·nod′al·ly adv.
1. (General Physics) the positive electrode in an electrolytic cell
2. (General Physics) Also called (esp US): plate the positively charged electrode in an electronic valve
3. (General Physics) the negative terminal of a primary cell. Compare cathode
[C19: from Greek anodos a way up, from hodos a way; alluding to the movement of the current to or from the positive pole]
anodal, anodic adj
1. the electrode or terminal by which current enters an electrolytic cell, voltaic cell, battery, etc.
2. the negative terminal of a voltaic cell or battery.
3. the positive terminal, electrode, or element of an electron tube or electrolytic cell.
[1834; < Greek ánodos upward path =an- an-3 + hodós way, road]
an•od′ic (-ˈɒd ɪk) adj.
1. The positive electrode in an electrolytic cell, toward which negatively charged particles are attracted. The anode has a positive charge because it is connected to the positively charged end of an external power supply.
2. The negative electrode in a voltaic cell, such as a battery, toward which positively charged particles are attracted. The anode gets its negative charge from the chemical reaction that happens inside the battery, not from an external source. Compare cathode.
1. Electrode carrying the positive charge in a solution undergoing electrolysis.
2. A positive electrode.
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|Noun||1.||anode - a positively charged electrode by which electrons leave an electrical device|
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)
plate - the positively charged electrode in a vacuum tube
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
cathode - a negatively charged electrode that is the source of electrons entering an electrical device
|2.||anode - the negatively charged terminal of a voltaic cell or storage battery that supplies current|
terminal, pole - a contact on an electrical device (such as a battery) at which electric current enters or leaves
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
cathode - the positively charged terminal of a voltaic cell or storage battery that supplies current