Definition of combustion in English:



  • 1The process of burning something.

    ‘the combustion of fossil fuels’
    • ‘The production of potash from broad-leaved trees also utilized wood in combustion processes.’
    • ‘The combustion pollutants discussed in this booklet come from burning fuels in appliances.’
    • ‘Called the " silent killer " because it is odorless, it is produced when hydrocarbon combustion is incomplete.’
    • ‘In addition, gasoline combustion products filled the tunnel with smoke.’
    • ‘Charcoal is the product of incomplete combustion of wood and is a seriously brilliant substance.’
    • ‘The complete combustion of carbon and hydrocarbons described above rarely occurs in nature.’
    • ‘More traditionally, wood gas has been used to drive internal combustion piston engines.’
    • ‘However, such a detector will not detect other combustion by-products that can still make you ill.’
    • ‘The purpose for this requirement is to prevent noxious combustion gases from venting into the living area.’
    • ‘During the combustion of coal, minor constituents are also oxidized.’
    • ‘But gasoline combustion also results in over a pound of water for every pound of fuel burned.’
    • ‘The widespread combustion of leaded gasoline is dangerous to society.’
    • ‘Onboard sensors confirmed that combustion occurred in one of two parallel chambers.’
    • ‘Although greenhouse gases come from many sources, fossil fuel combustion is the prime human-induced source.’
    • ‘Twenty-five percent of total worldwide emissions come from fossil fuel combustion.’
    • ‘An exhaust fan may pull the combustion gases back into the living space.’
    • ‘The health effects of combustion pollutants range from headaches and breathing difficulties to death.’
    • ‘When the flame is in complete combustion, you don't smell the oil.’
    • ‘Acid on the foil, they said, can cause combustion.’
    • ‘Fly ash is a byproduct of coal combustion.’
    burning, firing, kindling, igniting, ignition
    View synonyms
    1. 1.1Chemistry Rapid chemical combination of a substance with oxygen, involving the production of heat and light.
      • ‘Heat causes combustion by increasing the oxidation rate of the fuel/oxygen mix.’
      • ‘Nitroglycerin is an explosive because no outside source of oxygen is needed for its complete combustion.’
      • ‘Chlorine does not undergo combustion, although it does support combustion in much the same way as does oxygen.’
      • ‘Enols are less stable than carbonyls, and standard combustion mechanisms assume that they do not play a role.’
      • ‘One of the products of combustion of any system is heat - quite a bit of it.’


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