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Definitions of piston
  1. noun
    United States neoclassical composer (1894-1976)

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  2. noun
    mechanical device that has a plunging or thrusting motion

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Definition that contains piston
  • ice 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
  • lead the timing of ignition relative to the position of the piston in an internal-combustion engine
  • cylinder a chamber within which piston moves
  • gasket seal consisting of a ring for packing pistons or sealing a pipe joint
  • hypodermic a piston syringe that is fitted with a hypodermic needle for giving injections
  • hypo a piston syringe that is fitted with a hypodermic needle for giving injections
  • outstroke the stroke of an engine piston moving toward the crankshaft
  • brake pedal foot pedal that moves a piston in the master brake cylinder
  • piston rod connecting rod that moves or is moved by a piston
  • steam engine external-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder
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