antiknock
adj 1noun 1
Definitions
adj
1
Of an additive added to petroleum/gasoline to reduce the occurrence of engine knock.
noun
1
Such a substance, usually tetraethyl lead (also MMT, MTBE and ethanol).
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adj
Of an additive added to petroleum/gasoline to reduce the occurrence of engine knock.
noun
Such a substance, usually tetraethyl lead (also MMT, MTBE and ethanol).