Library / English Dictionary

ANTIKNOCK

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

Any of various compounds that are added to gasoline to reduce engine knocking

Classified under:

Nouns denoting substances

Hypernyms ("antiknock" is a kind of...):

chemical compound; compound ((chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight)

Hyponyms (each of the following is a kind of "antiknock"):

lead tetraethyl; tetraethyl lead (a clear oily poisonous liquid added to gasoline to prevent knocking)

Derivation:

antiknock (suppressing or eliminating engine knock in combustion engines)

 II. (adjective) 

Sense 1

Meaning:

Suppressing or eliminating engine knock in combustion engines

Example:

antiknock rating

Synonyms:

antiknock; antiknocking

Classified under:

Adjectives

Similar:

leaded (treated or mixed with lead)

Derivation:

antiknock (any of various compounds that are added to gasoline to reduce engine knocking)

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