anode

American  

[an-ohd] / ˈæn oʊd /

noun

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.

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anode British  

/ əˈnɒdɪk, ˈænəʊd, eɪˈnəʊdəl /

noun

1. the positive electrode in an electrolytic cell

2. Also called (esp US): plate.  the positively charged electrode in an electronic valve

3. the negative terminal of a primary cell Compare cathode

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anode Scientific  

/ ăn′ōd′ /

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 positively charged element of an electrical device, such as a vacuum tube or a diode, to which electrons are attracted.

3. The negative electrode of a voltaic cell, such as a battery. The anode gets its negative charge from the chemical reaction that happens inside the battery, not from an external source.

4. Compare cathode

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Other Word Forms

• anodal adjective

Etymology

Origin of anode

1825–35; < Greek ánodos way up, equivalent to an- an- ³ + hodós way, road

Compare meaning

How does anode compare to similar and commonly confused words? Explore the most common comparisons:

• anode vs. cathode

Example Sentences

For the current work, however, the researchers deposited the anode layer, in this case a silver electrode, directly onto the active layers, creating better adhesion between the layers.

From Science Daily • Mar. 27, 2024

Solid-state lithium-sulfur batteries are a type of rechargeable battery consisting of a solid electrolyte, an anode made of lithium metal and a cathode made of sulfur.

From Science Daily • Mar. 6, 2024

Researchers are fervently exploring the use of silicon, known for its high storage capacity, as the anode material in lithium-ion batteries for EVs.

From Science Daily • Feb. 7, 2024

Professor Soojin Park stressed: "We used a micro-silicon anode, yet, we have a stable battery. This research brings us closer to a real high-energy-density lithium-ion battery system."

From Science Daily • Feb. 7, 2024

My unexpected success came from using a powerful rotating anode X-ray tube which had just been assembled in the Cavendish.

From "Double Helix" by James D. Watson