reciprocate : Idioms & Phrases
Reciprocating engine
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noun an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders
WordNet
- a steam, air, or gas engine, etc., in which the piston moves back and forth; in distinction from a rotary engine, in which the piston travels continuously in one direction in a circular path.
Webster 1913
Reciprocating motion
(Mech.) , motion alternately backward and forward, or up and down, as of a piston rod.
Webster 1913
reciprocating saw
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noun a portable power saw with a reciprocating blade; can be used with a variety of blades depending on the application and kind of cut; generally have a plate that rides on the surface that is being cut
saber saw; jigsaw.