Definition of antiknock in English:


Syllabification: an·ti·knock
Pronunciation: /ˌantēˈnäk, ˌantī-


  • A substance (such as tetraethyl lead) added to gasoline to inhibit preignition.
    More 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.

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