Definition of combustion
- Smoke is produced during combustion.
- The carburetor mixes fuel with air for combustion.
- … periods of great social combustion alternating with quiescence …
- —Kurt Andersen
Combustion may occur at high temperatures.
This ratio of air to fuel results in better combustion.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'combustion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 15th centurySee Words from the same year
: the act of burning
: a chemical reaction that occurs when oxygen combines with other substances to produce heat and usually light
What made you want to look up combustion? Please tell us where you read or heard it (including the quote, if possible).
without deliberation, pause, or delay
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