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Automobile

Of or relating to any vehicle, usually designed to carry passengers, that operates on ordinary roads and typically has four wheels and a gasoline or diesel internal-combustion engine.

Contributors in Automobile

Automobile

Positive camber

Automotive; Automobile

Wheel geometry in which a pair of wheels are angled so they are closer together at the bottom than the top.

Poppet valve

Automotive; Automobile

Engine valve with a slender stem and a mushroom-shaped head.

Pop-back

Automotive; Automobile

Malfunction in which fuel mixture is ignited within the intake manifold. Noise - and sometimes a flame - pops back through the carburettor.

Polyethylene

Automotive; Automobile

Tough plastic that is readily processed into pipes and lines.

Polypropylene

Automotive; Automobile

Tough and durable plastic used for making impact-resisting bumper bars.

Piston displacement

Automotive; Automobile

Total volume displaced as the piston moves in the cylinder from bottom dead centre to top centre dead.

Piston ring

Automotive; Automobile

Metal ring placed in a circumferential groove in the exterior of a piston to create a gas seal between the piston and cylinder wall.

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