antiknock

A1N1T1I1K5N1O1C3K5

adjective

Of an additive added to petroleum/gasoline to reduce the occurrence of engine knock.

Scrabble 19

Meanings

adjectiveantiknock (not comparable)

alternative anti-knock

  1. not comparableOf an additive added to petroleum/gasoline to reduce the occurrence of engine knock.
nounantiknock (plural antiknocks)

plural antiknocks · alternative anti-knock

  1. Such a substance, usually tetraethyl lead (also MMT, MTBE and ethanol).

Synonyms & antonyms

adjectivesuppressing or eliminating engine knock in combustion engines

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*h₂ent-
  2. Proto-Indo-European*h₂énts
  3. Proto-Indo-European*h₂énti
  4. Ancient Greekᾰ̓ντῐ́ (ăntĭ́)
  5. Ancient Greekἀντι- (anti-)
  6. Englishanti-
  7. Proto-Germanic*knukô
  8. Proto-Germanic*knukōną
  9. Proto-West Germanic*knokōn
  10. Old Englishcnocian
  11. Middle Englishknokken
  12. Englishknock
  13. Englishantiknock

From anti- + knock.

Full word history & related roots →

Translations

Bulgarian противодетонационен
  • противодетонационен (protivodetonacionen)substance to reduce the occurrence of engine knock
Finnish nakutusta estävä, nakutuksenestoaine
  • nakutusta estäväreducing the occurrence of engine knock
  • nakutuksenestoainesubstance to reduce the occurrence of engine knock
Polish antydetonator
  • antydetonatorsubstance to reduce the occurrence of engine knock
Portuguese antidetonante, antidetonante
  • antidetonantereducing the occurrence of engine knock
  • antidetonantesubstance to reduce the occurrence of engine knock
Cite this entry
APA

antiknock. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/antiknock

MLA

“antiknock.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/antiknock. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “antiknock,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/antiknock.

Source: antiknock on Wiktionary, CC BY-SA 4.0.