noun
- plural of cathode; the negatively charged electrodes in electrical devices such as batteries, vacuum tubes, or electrolytic cells
Usage: technical; physics/chemistry
Examples
- The cathodes in the battery were corroded and needed replacement.
- Scientists studied how electrons flow from the cathodes to the anodes.
- The vacuum tubes contained heated cathodes that emitted electrons.
- In electrolysis, metal ions are deposited at the cathodes.
- The technician checked all the cathodes in the electronic equipment.
- Modern LED displays use cathodes made of different materials.