rocker arm


noun Machinery.

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

Origin of rocker arm

First recorded in 1855–60

Example sentences from the Web for rocker arm

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