Definition of combustion
1 : an act or instance of burning Smoke is produced during combustion.
2 : a usually rapid chemical process (such as oxidation) that produces heat and usually light The carburetor mixes fuel with air for combustion.; also : a slower oxidation (as in the body)
3 : violent agitation : tumult … periods of great social combustion alternating with quiescence … — Kurt Andersen
combustiveplay \kəm-ˈbə-stiv\ adjective
Examples of combustion in a Sentence
Combustion may occur at high temperatures.
This ratio of air to fuel results in better combustion.
Recent Examples of combustion from the Web
A sustainable solution will require major changes in the global energy system: transitioning from fossil fuels to renewable energy and sharply reducing the number of cars running on internal-combustion engines.
But the space station has also become a laboratory for testing space technology and studying the behavior of materials and processes like combustion when gravity is removed.
The thrusters’ rough combustion of fuel have been blamed for throwing off the kill vehicles’ sensitive guidance system.
The National Fire Protection Association estimates that spontaneous combustion is responsible for more than 14,000 fires in the U.S. every year.
The experiments, to be controlled remotely by Glenn, are meant to improve fire safety, especially in space, and to make earthbound combustion cleaner and more efficient.
That may actually be achievable since the EV3 is said to weigh in at just under 1,000 pounds---less than the internal combustion unit on which it's based.
Unlike a combustion engine, in which exploding gas pushes pistons, a fuel cell engine strips electrons from hydrogen and uses the resulting electrical current to power a motor.
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.
COMBUSTION Defined for English Language Learners
Definition of combustion for English Language Learners
: the act of burning
: a chemical reaction that occurs when oxygen combines with other substances to produce heat and usually light
COMBUSTION Defined for Kids
Definition of combustion for Students
: the process of burning
Medical Definition of combustion
: a usually very rapid chemical process (as oxidation) that produces heat and usually light; also : a slower oxidation (as in the body)
Seen and Heard
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