1. the process of burning something
2. a chemical reaction in which a substance combines with oxygen to produce heat and light
Usage: chemistry

Examples

• The combustion of wood produces heat and smoke.
• Internal combustion engines power most cars.
• Complete combustion requires sufficient oxygen.
• The scientist studied the combustion process in the laboratory.
• Poor combustion can lead to carbon monoxide production.
• The combustion chamber reached extremely high temperatures.