Definitions

1. noun

the process of burning or undergoing a chemical reaction that releases heat and light.

“The scientist studied the effects of combustion on the environment.”

2. noun

the act or process of burning fuel, especially in an internal combustion engine.

“The car’s engine used a combination of air and fuel in a process of internal combustion.”

3. noun

a reaction that involves the burning of a substance.

“The firework’s combustion created a colorful display in the sky.”