English

Definition of combustion noun from the Oxford Advanced Learner's Dictionary

     

    combustion

     noun
    noun
    BrE BrE//kəmˈbʌstʃən//
     
    ; NAmE NAmE//kəmˈbʌstʃən//
     
    [uncountable]
     
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  1. 1the process of burning Poisonous gases are produced during fossil fuel combustion.
  2. 2(specialist) a chemical process in which substances combine with the oxygen in the air to produce heat and light The ratio must be correct in order to achieve complete combustion.
  3. Word Origin late Middle English: from late Latin combustio(n-), from Latin comburere ‘burn up’.
See the Oxford Advanced American Dictionary entry: combustion