electrodes
nounUK /ɪˈlɛktrəʊdz/
US /ɪˈlɛktroʊdz/
Electrodes are small metal parts that let electricity go in or out of something.
The battery has two electrodes that carry power to the toy car.
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RELATED WORDS
OTHER MEANINGS
2. The two metal pads a doctor sticks on your chest to check your heartbeat.
The nurse placed the electrodes on his chest for the heart test.
3. The metal tips on a welding tool that carry electric current.
He replaced the worn electrodes on the welding torch.
4. The metal plates in a fuel cell where chemical reactions make electricity.
The fuel cell's electrodes help turn hydrogen into electric power.