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Noun reciprocating engine has 1 sense
  1. reciprocating engine - an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders
    --1 is a kind of     internal-combustion engine, ICE
    --1 has parts:
     crankcase; crankshaft; engine block, cylinder block, block; piston, plunger
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