piston rod

English Thesaurus

1. connecting rod that moves or is moved by a piston (noun.artifact)

hypernym	:	connecting rod,
definition	:	a rod that transmits motion (especially one that connects a rotating wheel to a reciprocating shaft) (noun.artifact)

part meronym	:	piston, plunger,
definition	:	mechanical device that has a plunging or thrusting motion (noun.artifact)