piston engine

About 0.10 uses per million words.

Meaning

1. noun Any of several types of engine having cylinders containing reciprocating pistons, in which a crankshaft is turned by pistons moving up and down within cylinders; many internal combustion engines and many steam engines have such a mechanism.

Similar words

reciprocating engine internal combustion engine steam engine piston cylinder internal-combustion engine diesel engine beam engine entry ignition engine rotary engine