connecting rod

1. (idiomatic, usually)A rod, inside a reciprocating engine, that connects a piston to the crankshaft.

   throw a connecting rod [ = when the reciprocating assembly flies apart, rarely]

   The engine threw a connecting rod at six thousand RPM and "ventilated" the engine block, as they say.

   Pleuel, Pleuelstange

   шату́нšatún

   a rod that transmits motion (especially one that connects a rotating wheel to a reciprocating shaft)

2. (sometimes)Used other than figuratively or idiomatically: see connecting, rod: any rod that connects two other parts.

   There's a tiny connecting rod that links the actuator to this valve.

regular