Meaning of COMBUSTION in English

COMBUSTION

/ kəmˈbʌstʃən; NAmE / noun [ U ]

1.

the process of burning

2.

( technical ) a chemical process in which substances combine with the oxygen in the air to produce heat and light

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WORD ORIGIN

late Middle English : from late Latin combustio(n-) , from Latin comburere burn up.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.