1. of, relating to, or acting as a cathode; involving the cathode in an electrical device or process
Usage: technical; chemistry and physics
2. protected from corrosion by making it the cathode in an electrochemical cell
Usage: technical; engineering

Examples

• The cathodic protection system prevents rust on the steel pipeline.
• Electrons flow toward the cathodic surface during electrolysis.
• The battery's cathodic material determines its voltage output.
• Cathodic corrosion prevention is widely used in marine engineering.
• The cathodic ray tube was essential to early television technology.
• Ships use cathodic anodes to protect their hulls from saltwater corrosion.