Definition of “combustion” - English Dictionary

“combustion” in British English

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(Definition of “combustion” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“combustion” in American English

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combustionnoun [ U ]

us /kəmˈbʌs·tʃən/

the process of burning:

Fuel combustion produces energy to run machines.
combustible
adjective us /kəmˈbʌs·tə·bəl/

Gasoline is a highly combustible substance.

(Definition of “combustion” from the Cambridge Academic Content Dictionary © Cambridge University Press)