noun a heat engine in which ignition occurs outside the chamber (cylinder or turbine) in which heat is converted to mechanical energy
four-stroke internal-combustion engine
noun an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke
noun the combustion of fuel inside a cylinder (as in an internal-combustion engine)
noun a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine
noun ignition of a substance (as oily rags) resulting from an internal oxidation process
- combustion produced in a substance by the evolution of heat through the chemical action of its own elements; as, the spontaneous combustion of waste matter saturated with oil.
Supporter of combustion
- (Chem.), a gas as oxygen, the combination of which with a combustible, as coal, constitutes combustion.
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