The prime mover may be a gas reciprocating engine.
The piston is reciprocating inside cylinder.
reciprocating blade spreader
Compressor may be reciprocating positive displacement or centrifugal.
Investigators found a bloody reciprocating saw on the bedroom floor and a hatchet which was still wet seemingly fresh from a wash atop an upper shelf in the kitchen according to The Herald.
Washington woman is behind bars after allegedly attempting to behead her sleeping husband with a reciprocating saw.