antiknock

Noun
  • Any of various compounds that are added to gasoline to reduce engine knocking (synset 114609403)
    hypernym: chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
    hyponym: lead tetraethyl, tetraethyl lead - a clear oily poisonous liquid added to gasoline to prevent knocking
Adjective
  • Suppressing or eliminating engine knock in combustion engines (synset 301399936)
    similar: leaded - treated or mixed with lead
    synonym: antiknocking

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