piston

Noun
  1. United States neoclassical composer (1894-1976) (synset 111255916)
    is an instance of: composer - someone who composes music as a profession
    same as: walter piston
  2. Mechanical device that has a plunging or thrusting motion (synset 103955226)
    is a type of: mechanical device - mechanism consisting of a device that works on mechanical principles
    has:
    • piston ring - seal consisting of a split metal ring that seals the gap between a piston and the cylinder wall
    • piston rod - connecting rod that moves or is moved by a piston
    is a part of: reciprocating engine - an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders
    same as: plunger

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