Dictionary

rocker arm

noun

Definition of ROCKER ARM

:  a center-pivoted lever actuated by a cam to push an automotive engine valve down
ADVERTISEMENT

First Known Use of ROCKER ARM

1851

Browse

Next Word in the Dictionary: rocker bentPrevious Word in the Dictionary: rockerAll Words Near: rocker arm
ADVERTISEMENT
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears