Oxide (noun)

1. A chemical compound consisting of an element combined with oxygen.
2. A material with a metallic appearance and high electrical conductivity, often used as a conductor in electronic devices.
3. A surface layer formed on metal by oxidation or corrosion.

Origin:

The word 'oxide' is derived from the latin word 'oxidum' meaning 'combination with oxygen'. it has been in use since the 19th century.

Examples:

1. Iron oxide is the compound that forms rust.
2. Silicon dioxide is the material that is used to make glass.
3. Tin oxide is the conductor that is used in the transparent conductive films.
4. Zinc oxide is the compound that is used as a sunscreen.
5. Copper oxide is the material that is used as a catalyst.