antiknock

Definitions of antiknock
1

n any of various compounds that are added to gasoline to reduce engine knocking

Types:
lead tetraethyl, tetraethyl lead
a clear oily poisonous liquid added to gasoline to prevent knocking
Type of:
chemical compound, compound
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight

adj suppressing or eliminating engine knock in combustion engines

antiknock properties”
antiknock rating”
Synonyms:
antiknocking
leaded
treated or mixed with lead

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