piston rod
noun1
A rod or bar in an engine that connects a piston to a crosshead.
- The cylinder barrels are lubricated by non-atomised feeds introduced at top and bottom. The remaining non-atomised feeds are to the piston rod packing and the valve spindle rear bush.1956 April, “"Merchant Navy" Class Pacific Modified”, in Railway Magazine, page 211:
- Related terms
- connecting rod, con rod, con-rod