1. a chemical compound formed when oxygen combines with another element
Usage: chemistry

Examples

• Carbon dioxide is an oxide of carbon.
• Iron oxide, commonly known as rust, forms when iron is exposed to oxygen and moisture.
• Aluminum oxide is used as an abrasive in sandpaper.
• The scientist studied various metal oxides in the laboratory.
• Nitrogen oxides are pollutants released by car engines.
• Calcium oxide is produced when limestone is heated.
• The ceramic coating contains titanium oxide for durability.