Share this entry

antiknock Syllabification: an·ti·knock
Pronunciation: /ˈan(t)ēnäk/

Definition of antiknock in English:


A substance (such as tetraethyl lead) added to gasoline to inhibit preignition.
Example sentences
  • The single most important human exposure to lead was lead aerosol, formed by combustion of lead anti-knock additives in petrol, he said.
  • It focuses on efforts to cover up the health risks associated with lead in paints and ‘anti-knock’ gasoline and the vinyl chloride used in many plastics.
  • One commonly used application is in the production of anti-knock gasoline.

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources