antiknock

play
adjective an·ti·knock \ ˌan-tē-ˈnäk , ˌan-tī- \
variants: or anti-knock

Definition of antiknock

:serving or intended to prevent detonation in the combustion process of an internal-combustion engine
  • an antiknock agent
  • an anti-knock fuel additive

First Known Use of antiknock

1921


Learn More about antiknock


Seen and Heard

What made you want to look up antiknock? 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 curse or denounce

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!