Anode (noun)

1. The electrode of a device, such as a battery or a cathode ray tube, through which electric current flows into the device.
2. The electrode that is positively charged in an electrolytic cell or an electron tube.

Origin:

Late 19th century, from greek anodos (way up), from ana- (up) + hodos (way).

Examples:

1. The anode is the electrode where oxidation occurs.
2. An anode is the positive electrode in an electrolytic cell.
3. The anode is the electrode where electrons flow into a device.
4. Anode corrosion is a common problem in batteries.
5. Anodes in cathode ray tubes are made of materials that emit electrons when heated.