conrod

/K AA1 N R AA0 D/
noun
  1. 1

    Any rod, in an engine, that transmits power or motion, especially one that connects a reciprocating shaft to a rotating wheel, in reciprocating engines connecting piston to crankshaft

Synonyms

Source: https://en.wiktionary.org/wiki/connecting%20rod, https://en.wiktionary.org/wiki/conrod