Meaning of COMBUSTION in English

COMBUSTION

com ‧ bus ‧ tion /kəmˈbʌstʃ ə n/ BrE AmE noun [uncountable]

1 . the process of burning

2 . technical chemical activity which uses oxygen to produce light and heat

⇨ ↑ internal combustion engine

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.