antiknocking
/ˌæntiˈnɑkɪŋ/
adjective
- Designed to prevent or reduce knocking (a pinging sound) in an engine, usually by improving the fuel's resistance to premature combustion.
- Modern gasoline often contains antiknocking compounds to protect the engine.
- Many high-performance cars require antiknocking fuel to run smoothly.
- The mechanic recommended an antiknocking additive to stop the engine from pinging.
Synonyms
noun
- A substance or additive that reduces engine knocking.
- The chemist developed a new antiknocking that is safer for the environment.
- Some drivers add an antiknocking to their fuel to improve performance.
- Lead was once a common antiknocking in gasoline, but it is now banned in most countries.
Antonyms