antiknock
noun
Definitions
Such a substance, usually tetraethyl lead (also MMT, MTBE and ethanol)
adjective
Definitions
Of an additive added to petroleum/gasoline to reduce the occurrence of engine knock.
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Definitions
Such a substance, usually tetraethyl lead (also MMT, MTBE and ethanol)
Definitions
Of an additive added to petroleum/gasoline to reduce the occurrence of engine knock.