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aeropulse see "pulsejet engine."
afterburner a device that increases the thrust of a jet engine by injecting fuel into the exhaust gases for burning. [2 definitions]
air-cooled cooled by circulating air, as an engine. [1/2 definitions]
air-fuel pertaining to the air and fuel injected at the same time into a combustion engine.
alternative fuel a fuel other than fossil fuel used to power an internal combustion engine.
antiknock reducing or preventing knocking in an internal combustion engine, by being added to the gasoline.
B-17 a four-engine U.S. bomber extensively used in World War II; Flying Fortress.
backfire to emit a loud noise as the result of inefficient functioning of the engine of a car or other internal-combustion vehicle. [2/4 definitions]
backwash in aeronautical terminology, air that a propeller, jet engine, or the like pushes toward the rear of an airplane. [1/4 definitions]
blow-by the leakage of unburned gases or of air mixed with fuel into the crankcase of an automobile engine, or the gases so leaking. [1/2 definitions]
bonnet (chiefly British) the metal lid that covers a car's engine; hood. [1/6 definitions]
burnout the end of firing of a rocket's engine prior to unpowered flight. [1/3 definitions]
camshaft an engine shaft having one or more cams.
carburetor a device in an internal-combustion engine that produces a combustible mixture of vaporized fuel and air.
carriage a wheeled passenger vehicle that is covered or enclosed, especially one that is drawn by a horse or horses or by a train engine, or one that is pushed along by a person. [1/5 definitions]
chassis in a motor vehicle, the frame supporting the body and engine. [1/4 definitions]
choke to enrich the fuel mixture of (an internal-combustion engine) by reducing the flow of air to the carburetor. [1/9 definitions]
chuff a chugging or puffing sound, as of a steam engine. [1/2 definitions]
clutch1 a mechanical device for engaging and disengaging two shafts or other moving parts of an engine, as in an automobile. [1/9 definitions]
combustion chamber an engine chamber, esp. in a jet or rocket, in which fuel or a propellant is burned.
combustor the apparatus in a jet engine in which combustion occurs.