connecting-rod

connecting rod

noun Machinery.
a rod or link for transmitting motion and force between a rotating and a reciprocating part, as between a piston and a crankshaft.

Origin:
1830–40

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World English Dictionary
connecting rod
 
n
1.  a rod or bar for transmitting motion, esp one that connects a rotating part to a reciprocating part
2.  big end See also little end such a rod that connects the piston to the crankshaft in an internal-combustion engine or reciprocating pump
3.  a similar rod that connects the crosshead of a steam engine to the crank

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