Search Result：antiknock
antiknock 
(TTS Sound)
(TTS Sound)Overview of noun antiknock
The noun antiknock has 1 sense
- antiknock -- (any of various compounds that are added to gasoline to reduce engine knocking)
Overview of adj antiknock
The adj antiknock has 1 sense
- antiknock, antiknocking -- (suppressing or eliminating engine knock in combustion engines; "antiknock properties"; "antiknock rating")