rocker arm

noun Machinery.

a rocking or oscillating arm or lever rotating with a moving shaft or pivoted on a stationary shaft.

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Origin of rocker arm

First recorded in 1855–60

Words nearby rocker arm

rockaway, rockefeller, rockefeller, john d., rockefeller, nelson, rocker, rocker arm, rocker cam, rocker panel, rockery, rocket, rocket airplane

Example sentences from the Web for rocker arm

Very suddenly one of them drops out, with a rocker-arm gone.
Cavalry of the Clouds|Alan Bott

British Dictionary definitions for rocker arm

rocker arm

noun

a lever that rocks about a pivot, esp a lever in an internal-combustion engine that transmits the motion of a pushrod or cam to a valve

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012