rocker arm

noun

Definition of rocker arm

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

1851

First Known Use of rocker arm

1851


Learn More about rocker arm


Seen and Heard

What made you want to look up rocker arm? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to glide in or as if in an airplane

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!